fields is available on EOF
	 	$ADODB_FETCH_MODE;	// DEFAULT, NUM, ASSOC or BOTH. Default follows native driver default...
	
	//==============================================================================================	
	// GLOBAL SETUP
	//==============================================================================================	
	
	$ADODB_EXTENSION = defined('ADODB_EXTENSION');
	
	//********************************************************//
	/*
	Controls $ADODB_FORCE_TYPE mode. Default is ADODB_FORCE_VALUE (3).
	Used in GetUpdateSql and GetInsertSql functions. Thx to Niko, nuko#mbnet.fi
 		0 = ignore empty fields. All empty fields in array are ignored.
		1 = force null. All empty, php null and string 'null' fields are changed to sql NULL values.
		2 = force empty. All empty, php null and string 'null' fields are changed to sql empty '' or 0 values.
		3 = force value. Value is left as it is. Php null and string 'null' are set to sql NULL values and empty fields '' are set to empty '' sql values.
	*/
        define('ADODB_FORCE_IGNORE',0);
        define('ADODB_FORCE_NULL',1);
        define('ADODB_FORCE_EMPTY',2);
        define('ADODB_FORCE_VALUE',3);
    //********************************************************//
	if (!$ADODB_EXTENSION || ADODB_EXTENSION < 4.0) {
		
		define('ADODB_BAD_RS','
Bad $rs in %s. Connection or SQL invalid. Try using $connection->debug=true;
');
	
	// allow [ ] @ ` " and . in table names
		define('ADODB_TABLE_REGEX','([]0-9a-z_\:\"\`\.\@\[-]*)');
	
	// prefetching used by oracle
		if (!defined('ADODB_PREFETCH_ROWS')) define('ADODB_PREFETCH_ROWS',10);
	
	
	/*
	Controls ADODB_FETCH_ASSOC field-name case. Default is 2, use native case-names.
	This currently works only with mssql, odbc, oci8po and ibase derived drivers.
	
 		0 = assoc lowercase field names. $rs->fields['orderid']
		1 = assoc uppercase field names. $rs->fields['ORDERID']
		2 = use native-case field names. $rs->fields['OrderID']
	*/
	
		define('ADODB_FETCH_DEFAULT',0);
		define('ADODB_FETCH_NUM',1);
		define('ADODB_FETCH_ASSOC',2);
		define('ADODB_FETCH_BOTH',3);
		
		if (!defined('TIMESTAMP_FIRST_YEAR')) define('TIMESTAMP_FIRST_YEAR',100);
	
		// PHP's version scheme makes converting to numbers difficult - workaround
		$_adodb_ver = (float) PHP_VERSION;
		if ($_adodb_ver >= 5.2) {
			define('ADODB_PHPVER',0x5200);
		} else if ($_adodb_ver >= 5.0) {
			define('ADODB_PHPVER',0x5000);
		} else if ($_adodb_ver > 4.299999) { # 4.3
			define('ADODB_PHPVER',0x4300);
		} else if ($_adodb_ver > 4.199999) { # 4.2
			define('ADODB_PHPVER',0x4200);
		} else if (strnatcmp(PHP_VERSION,'4.0.5')>=0) {
			define('ADODB_PHPVER',0x4050);
		} else {
			define('ADODB_PHPVER',0x4000);
		}
	}
	
	//if (!defined('ADODB_ASSOC_CASE')) define('ADODB_ASSOC_CASE',2);
	
	/**
	 	Accepts $src and $dest arrays, replacing string $data
	*/
	function ADODB_str_replace($src, $dest, $data)
	{
		if (ADODB_PHPVER >= 0x4050) return str_replace($src,$dest,$data);
		
		$s = reset($src);
		$d = reset($dest);
		while ($s !== false) {
			$data = str_replace($s,$d,$data);
			$s = next($src);
			$d = next($dest);
		}
		return $data;
	}
	
	function ADODB_Setup()
	{
	GLOBAL 
		$ADODB_vers, 		// database version
		$ADODB_COUNTRECS,	// count number of records returned - slows down query
		$ADODB_CACHE_DIR,	// directory to cache recordsets
	 	$ADODB_FETCH_MODE,
		$ADODB_FORCE_TYPE;
		
		$ADODB_FETCH_MODE = ADODB_FETCH_DEFAULT;
		$ADODB_FORCE_TYPE = ADODB_FORCE_VALUE;
		if (!isset($ADODB_CACHE_DIR)) {
			$ADODB_CACHE_DIR = '/tmp'; //(isset($_ENV['TMP'])) ? $_ENV['TMP'] : '/tmp';
		} else {
			// do not accept url based paths, eg. http:/ or ftp:/
			if (strpos($ADODB_CACHE_DIR,'://') !== false) 
				die("Illegal path http:// or ftp://");
		}
		
			
		// Initialize random number generator for randomizing cache flushes
		// -- note Since PHP 4.2.0, the seed  becomes optional and defaults to a random value if omitted.
		 srand(((double)microtime())*1000000);
		
		/**
		 * ADODB version as a string.
		 */
		$ADODB_vers = 'V4.93 10 Oct 2006 (c) 2000-2006 John Lim (jlim#natsoft.com.my). All rights reserved. Released BSD & LGPL.';
	
		/**
		 * Determines whether recordset->RecordCount() is used. 
		 * Set to false for highest performance -- RecordCount() will always return -1 then
		 * for databases that provide "virtual" recordcounts...
		 */
		if (!isset($ADODB_COUNTRECS)) $ADODB_COUNTRECS = true; 
	}
	
	
	//==============================================================================================	
	// CHANGE NOTHING BELOW UNLESS YOU ARE DESIGNING ADODB
	//==============================================================================================	
	
	ADODB_Setup();
	//==============================================================================================	
	// CLASS ADOFieldObject
	//==============================================================================================	
	/**
	 * Helper class for FetchFields -- holds info on a column
	 */
	class ADOFieldObject { 
		var $name = '';
		var $max_length=0;
		var $type="";
/*
		// additional fields by dannym... (danny_milo@yahoo.com)
		var $not_null = false; 
		// actually, this has already been built-in in the postgres, fbsql AND mysql module? ^-^
		// so we can as well make not_null standard (leaving it at "false" does not harm anyways)
		var $has_default = false; // this one I have done only in mysql and postgres for now ... 
			// others to come (dannym)
		var $default_value; // default, if any, and supported. Check has_default first.
*/
	}
	
	
	function ADODB_TransMonitor($dbms, $fn, $errno, $errmsg, $p1, $p2, &$thisConnection)
	{
		//print "Errorno ($fn errno=$errno m=$errmsg) ";
		$thisConnection->_transOK = false;
		if ($thisConnection->_oldRaiseFn) {
			$fn = $thisConnection->_oldRaiseFn;
			$fn($dbms, $fn, $errno, $errmsg, $p1, $p2,$thisConnection);
		}
	}
	
	//==============================================================================================	
	// CLASS ADOConnection
	//==============================================================================================	
	
	/**
	 * Connection object. For connecting to databases, and executing queries.
	 */ 
	class ADOConnection {
	//
	// PUBLIC VARS 
	//
	var $dataProvider = 'native';
	var $databaseType = '';		/// RDBMS currently in use, eg. odbc, mysql, mssql					
	var $database = '';			/// Name of database to be used.	
	var $host = ''; 			/// The hostname of the database server	
	var $user = ''; 			/// The username which is used to connect to the database server. 
	var $password = ''; 		/// Password for the username. For security, we no longer store it.
	var $debug = false; 		/// if set to true will output sql statements
	var $maxblobsize = 262144; 	/// maximum size of blobs or large text fields (262144 = 256K)-- some db's die otherwise like foxpro
	var $concat_operator = '+'; /// default concat operator -- change to || for Oracle/Interbase	
	var $substr = 'substr';		/// substring operator
	var $length = 'length';		/// string length ofperator
	var $random = 'rand()';		/// random function
	var $upperCase = 'upper';		/// uppercase function
	var $fmtDate = "'Y-m-d'";	/// used by DBDate() as the default date format used by the database
	var $fmtTimeStamp = "'Y-m-d, h:i:s A'"; /// used by DBTimeStamp as the default timestamp fmt.
	var $true = '1'; 			/// string that represents TRUE for a database
	var $false = '0'; 			/// string that represents FALSE for a database
	var $replaceQuote = "\\'"; 	/// string to use to replace quotes
	var $nameQuote = '"';		/// string to use to quote identifiers and names
	var $charSet=false; 		/// character set to use - only for interbase, postgres and oci8
	var $metaDatabasesSQL = '';
	var $metaTablesSQL = '';
	var $uniqueOrderBy = false; /// All order by columns have to be unique
	var $emptyDate = ' ';
	var $emptyTimeStamp = ' ';
	var $lastInsID = false;
	//--
	var $hasInsertID = false; 		/// supports autoincrement ID?
	var $hasAffectedRows = false; 	/// supports affected rows for update/delete?
	var $hasTop = false;			/// support mssql/access SELECT TOP 10 * FROM TABLE
	var $hasLimit = false;			/// support pgsql/mysql SELECT * FROM TABLE LIMIT 10
	var $readOnly = false; 			/// this is a readonly database - used by phpLens
	var $hasMoveFirst = false;  /// has ability to run MoveFirst(), scrolling backwards
	var $hasGenID = false; 		/// can generate sequences using GenID();
	var $hasTransactions = true; /// has transactions
	//--
	var $genID = 0; 			/// sequence id used by GenID();
	var $raiseErrorFn = false; 	/// error function to call
	var $isoDates = false; /// accepts dates in ISO format
	var $cacheSecs = 3600; /// cache for 1 hour
	// memcache
	var $memCache = false; /// should we use memCache instead of caching in files
	var $memCacheHost; /// memCache host
	var $memCachePort = 11211; /// memCache port
	var $memCacheCompress = false; /// Use 'true' to store the item compressed (uses zlib)
	var $sysDate = false; /// name of function that returns the current date
	var $sysTimeStamp = false; /// name of function that returns the current timestamp
	var $arrayClass = 'ADORecordSet_array'; /// name of class used to generate array recordsets, which are pre-downloaded recordsets
	
	var $noNullStrings = false; /// oracle specific stuff - if true ensures that '' is converted to ' '
	var $numCacheHits = 0; 
	var $numCacheMisses = 0;
	var $pageExecuteCountRows = true;
	var $uniqueSort = false; /// indicates that all fields in order by must be unique
	var $leftOuter = false; /// operator to use for left outer join in WHERE clause
	var $rightOuter = false; /// operator to use for right outer join in WHERE clause
	var $ansiOuter = false; /// whether ansi outer join syntax supported
	var $autoRollback = false; // autoRollback on PConnect().
	var $poorAffectedRows = false; // affectedRows not working or unreliable
	
	var $fnExecute = false;
	var $fnCacheExecute = false;
	var $blobEncodeType = false; // false=not required, 'I'=encode to integer, 'C'=encode to char
	var $rsPrefix = "ADORecordSet_";
	
	var $autoCommit = true; 	/// do not modify this yourself - actually private
	var $transOff = 0; 			/// temporarily disable transactions
	var $transCnt = 0; 			/// count of nested transactions
	
	var $fetchMode=false;
	
	var $null2null = 'null'; // in autoexecute/getinsertsql/getupdatesql, this value will be converted to a null
	 //
	 // PRIVATE VARS
	 //
	var $_oldRaiseFn =  false;
	var $_transOK = null;
	var $_connectionID	= false;	/// The returned link identifier whenever a successful database connection is made.	
	var $_errorMsg = false;		/// A variable which was used to keep the returned last error message.  The value will
								/// then returned by the errorMsg() function	
	var $_errorCode = false;	/// Last error code, not guaranteed to be used - only by oci8					
	var $_queryID = false;		/// This variable keeps the last created result link identifier
	
	var $_isPersistentConnection = false;	/// A boolean variable to state whether its a persistent connection or normal connection.	*/
	var $_bindInputArray = false; /// set to true if ADOConnection.Execute() permits binding of array parameters.
	var $_evalAll = false;
	var $_affected = false;
	var $_logsql = false;
	var $_transmode = ''; // transaction mode
	
	
	/**
	 * Constructor
	 */
	function ADOConnection()			
	{
		die('Virtual Class -- cannot instantiate');
	}
	
	function Version()
	{
	global $ADODB_vers;
	
		return (float) substr($ADODB_vers,1);
	}
	
	/**
		Get server version info...
		
		@returns An array with 2 elements: $arr['string'] is the description string, 
			and $arr[version] is the version (also a string).
	*/
	function ServerInfo()
	{
		return array('description' => '', 'version' => '');
	}
	
	function IsConnected()
	{
    	return !empty($this->_connectionID);
	}
	
	function _findvers($str)
	{
		if (preg_match('/([0-9]+\.([0-9\.])+)/',$str, $arr)) return $arr[1];
		else return '';
	}
	
	/**
	* All error messages go through this bottleneck function.
	* You can define your own handler by defining the function name in ADODB_OUTP.
	*/
	function outp($msg,$newline=true)
	{
	global $ADODB_FLUSH,$ADODB_OUTP;
	
		if (defined('ADODB_OUTP')) {
			$fn = ADODB_OUTP;
			$fn($msg,$newline);
			return;
		} else if (isset($ADODB_OUTP)) {
			$fn = $ADODB_OUTP;
			$fn($msg,$newline);
			return;
		}
		
		if ($newline) $msg .= "
\n";
		
		if (isset($_SERVER['HTTP_USER_AGENT']) || !$newline) echo $msg;
		else echo strip_tags($msg);
	
		
		if (!empty($ADODB_FLUSH) && ob_get_length() !== false) flush(); //  do not flush if output buffering enabled - useless - thx to Jesse Mullan 
		
	}
	
	function Time()
	{
		$rs =& $this->_Execute("select $this->sysTimeStamp");
		if ($rs && !$rs->EOF) return $this->UnixTimeStamp(reset($rs->fields));
		
		return false;
	}
	
	/**
	 * Connect to database
	 *
	 * @param [argHostname]		Host to connect to
	 * @param [argUsername]		Userid to login
	 * @param [argPassword]		Associated password
	 * @param [argDatabaseName]	database
	 * @param [forceNew]		force new connection
	 *
	 * @return true or false
	 */	  
	function Connect($argHostname = "", $argUsername = "", $argPassword = "", $argDatabaseName = "", $forceNew = false) 
	{
		if ($argHostname != "") $this->host = $argHostname;
		if ($argUsername != "") $this->user = $argUsername;
		if ($argPassword != "") $this->password = $argPassword; // not stored for security reasons
		if ($argDatabaseName != "") $this->database = $argDatabaseName;		
		
		$this->_isPersistentConnection = false;	
		if ($forceNew) {
			if ($rez=$this->_nconnect($this->host, $this->user, $this->password, $this->database)) return true;
		} else {
			 if ($rez=$this->_connect($this->host, $this->user, $this->password, $this->database)) return true;
		}
		if (isset($rez)) {
			$err = $this->ErrorMsg();
			if (empty($err)) $err = "Connection error to server '$argHostname' with user '$argUsername'";
			$ret = false;
		} else {
			$err = "Missing extension for ".$this->dataProvider;
			$ret = 0;
		}
		if ($fn = $this->raiseErrorFn) 
			$fn($this->databaseType,'CONNECT',$this->ErrorNo(),$err,$this->host,$this->database,$this);
		
		
		$this->_connectionID = false;
		if ($this->debug) ADOConnection::outp( $this->host.': '.$err);
		return $ret;
	}	
	
	function _nconnect($argHostname, $argUsername, $argPassword, $argDatabaseName)
	{
		return $this->_connect($argHostname, $argUsername, $argPassword, $argDatabaseName);
	}
	
	
	/**
	 * Always force a new connection to database - currently only works with oracle
	 *
	 * @param [argHostname]		Host to connect to
	 * @param [argUsername]		Userid to login
	 * @param [argPassword]		Associated password
	 * @param [argDatabaseName]	database
	 *
	 * @return true or false
	 */	  
	function NConnect($argHostname = "", $argUsername = "", $argPassword = "", $argDatabaseName = "") 
	{
		return $this->Connect($argHostname, $argUsername, $argPassword, $argDatabaseName, true);
	}
	
	/**
	 * Establish persistent connect to database
	 *
	 * @param [argHostname]		Host to connect to
	 * @param [argUsername]		Userid to login
	 * @param [argPassword]		Associated password
	 * @param [argDatabaseName]	database
	 *
	 * @return return true or false
	 */	
	function PConnect($argHostname = "", $argUsername = "", $argPassword = "", $argDatabaseName = "")
	{
		if (defined('ADODB_NEVER_PERSIST')) 
			return $this->Connect($argHostname,$argUsername,$argPassword,$argDatabaseName);
		
		if ($argHostname != "") $this->host = $argHostname;
		if ($argUsername != "") $this->user = $argUsername;
		if ($argPassword != "") $this->password = $argPassword;
		if ($argDatabaseName != "") $this->database = $argDatabaseName;		
			
		$this->_isPersistentConnection = true;	
		if ($rez = $this->_pconnect($this->host, $this->user, $this->password, $this->database)) return true;
		if (isset($rez)) {
			$err = $this->ErrorMsg();
			if (empty($err)) $err = "Connection error to server '$argHostname' with user '$argUsername'";
			$ret = false;
		} else {
			$err = "Missing extension for ".$this->dataProvider;
			$ret = 0;
		}
		if ($fn = $this->raiseErrorFn) {
			$fn($this->databaseType,'PCONNECT',$this->ErrorNo(),$err,$this->host,$this->database,$this);
		}
		
		$this->_connectionID = false;
		if ($this->debug) ADOConnection::outp( $this->host.': '.$err);
		return $ret;
	}
	// Format date column in sql string given an input format that understands Y M D
	function SQLDate($fmt, $col=false)
	{	
		if (!$col) $col = $this->sysDate;
		return $col; // child class implement
	}
	
	/**
	 * Should prepare the sql statement and return the stmt resource.
	 * For databases that do not support this, we return the $sql. To ensure
	 * compatibility with databases that do not support prepare:
	 *
	 *   $stmt = $db->Prepare("insert into table (id, name) values (?,?)");
	 *   $db->Execute($stmt,array(1,'Jill')) or die('insert failed');
	 *   $db->Execute($stmt,array(2,'Joe')) or die('insert failed');
	 *
	 * @param sql	SQL to send to database
	 *
	 * @return return FALSE, or the prepared statement, or the original sql if
	 * 			if the database does not support prepare.
	 *
	 */	
	function Prepare($sql)
	{
		return $sql;
	}
	
	/**
	 * Some databases, eg. mssql require a different function for preparing
	 * stored procedures. So we cannot use Prepare().
	 *
	 * Should prepare the stored procedure  and return the stmt resource.
	 * For databases that do not support this, we return the $sql. To ensure
	 * compatibility with databases that do not support prepare:
	 *
	 * @param sql	SQL to send to database
	 *
	 * @return return FALSE, or the prepared statement, or the original sql if
	 * 			if the database does not support prepare.
	 *
	 */	
	function PrepareSP($sql,$param=true)
	{
		return $this->Prepare($sql,$param);
	}
	
	/**
	* PEAR DB Compat
	*/
	function Quote($s)
	{
		return $this->qstr($s,false);
	}
	
	/**
	 Requested by "Karsten Dambekalns" 
	*/
	function QMagic($s)
	{
		return $this->qstr($s,get_magic_quotes_gpc());
	}
	function q(&$s)
	{
		#if (!empty($this->qNull)) if ($s == 'null') return $s;
		$s = $this->qstr($s,false);
	}
	
	/**
	* PEAR DB Compat - do not use internally. 
	*/
	function ErrorNative()
	{
		return $this->ErrorNo();
	}
	
   /**
	* PEAR DB Compat - do not use internally. 
	*/
	function nextId($seq_name)
	{
		return $this->GenID($seq_name);
	}
	/**
	*	 Lock a row, will escalate and lock the table if row locking not supported
	*	will normally free the lock at the end of the transaction
	*
	*  @param $table	name of table to lock
	*  @param $where	where clause to use, eg: "WHERE row=12". If left empty, will escalate to table lock
	*/
	function RowLock($table,$where)
	{
		return false;
	}
	
	function CommitLock($table)
	{
		return $this->CommitTrans();
	}
	
	function RollbackLock($table)
	{
		return $this->RollbackTrans();
	}
	
	/**
	* PEAR DB Compat - do not use internally. 
	*
	* The fetch modes for NUMERIC and ASSOC for PEAR DB and ADODB are identical
	* 	for easy porting :-)
	*
	* @param mode	The fetchmode ADODB_FETCH_ASSOC or ADODB_FETCH_NUM
	* @returns		The previous fetch mode
	*/
	function SetFetchMode($mode)
	{	
		$old = $this->fetchMode;
		$this->fetchMode = $mode;
		
		if ($old === false) {
		global $ADODB_FETCH_MODE;
			return $ADODB_FETCH_MODE;
		}
		return $old;
	}
	
	/**
	* PEAR DB Compat - do not use internally. 
	*/
	function &Query($sql, $inputarr=false)
	{
		$rs = &$this->Execute($sql, $inputarr);
		if (!$rs && defined('ADODB_PEAR')) return ADODB_PEAR_Error();
		return $rs;
	}
	
	/**
	* PEAR DB Compat - do not use internally
	*/
	function &LimitQuery($sql, $offset, $count, $params=false)
	{
		$rs = &$this->SelectLimit($sql, $count, $offset, $params); 
		if (!$rs && defined('ADODB_PEAR')) return ADODB_PEAR_Error();
		return $rs;
	}
	
	/**
	* PEAR DB Compat - do not use internally
	*/
	function Disconnect()
	{
		return $this->Close();
	}
	
	/*
		 Returns placeholder for parameter, eg.
		 $DB->Param('a')
		 
		 will return ':a' for Oracle, and '?' for most other databases...
		 
		 For databases that require positioned params, eg $1, $2, $3 for postgresql,
		 	pass in Param(false) before setting the first parameter.
	*/
	function Param($name,$type='C')
	{
		return '?';
	}
	
	/*
		InParameter and OutParameter are self-documenting versions of Parameter().
	*/
	function InParameter(&$stmt,&$var,$name,$maxLen=4000,$type=false)
	{
		return $this->Parameter($stmt,$var,$name,false,$maxLen,$type);
	}
	
	/*
	*/
	function OutParameter(&$stmt,&$var,$name,$maxLen=4000,$type=false)
	{
		return $this->Parameter($stmt,$var,$name,true,$maxLen,$type);
	
	}
	
	/* 
	Usage in oracle
		$stmt = $db->Prepare('select * from table where id =:myid and group=:group');
		$db->Parameter($stmt,$id,'myid');
		$db->Parameter($stmt,$group,'group',64);
		$db->Execute();
		
		@param $stmt Statement returned by Prepare() or PrepareSP().
		@param $var PHP variable to bind to
		@param $name Name of stored procedure variable name to bind to.
		@param [$isOutput] Indicates direction of parameter 0/false=IN  1=OUT  2= IN/OUT. This is ignored in oci8.
		@param [$maxLen] Holds an maximum length of the variable.
		@param [$type] The data type of $var. Legal values depend on driver.
	*/
	function Parameter(&$stmt,&$var,$name,$isOutput=false,$maxLen=4000,$type=false)
	{
		return false;
	}
	
	
	function IgnoreErrors($saveErrs=false)
	{
		if (!$saveErrs) {
			$saveErrs = array($this->raiseErrorFn,$this->_transOK);
			$this->raiseErrorFn = false;
			return $saveErrs;
		} else {
			$this->raiseErrorFn = $saveErrs[0];
			$this->_transOK = $saveErrs[1];
		}
	}
	
	/**
		Improved method of initiating a transaction. Used together with CompleteTrans().
		Advantages include:
		
		a. StartTrans/CompleteTrans is nestable, unlike BeginTrans/CommitTrans/RollbackTrans.
		   Only the outermost block is treated as a transaction.
		b. CompleteTrans auto-detects SQL errors, and will rollback on errors, commit otherwise.
		c. All BeginTrans/CommitTrans/RollbackTrans inside a StartTrans/CompleteTrans block
		   are disabled, making it backward compatible.
	*/
	function StartTrans($errfn = 'ADODB_TransMonitor')
	{
		if ($this->transOff > 0) {
			$this->transOff += 1;
			return;
		}
		
		$this->_oldRaiseFn = $this->raiseErrorFn;
		$this->raiseErrorFn = $errfn;
		$this->_transOK = true;
		
		if ($this->debug && $this->transCnt > 0) ADOConnection::outp("Bad Transaction: StartTrans called within BeginTrans");
		$this->BeginTrans();
		$this->transOff = 1;
	}
	
	
	/**
		Used together with StartTrans() to end a transaction. Monitors connection
		for sql errors, and will commit or rollback as appropriate.
		
		@autoComplete if true, monitor sql errors and commit and rollback as appropriate, 
		and if set to false force rollback even if no SQL error detected.
		@returns true on commit, false on rollback.
	*/
	function CompleteTrans($autoComplete = true)
	{
		if ($this->transOff > 1) {
			$this->transOff -= 1;
			return true;
		}
		$this->raiseErrorFn = $this->_oldRaiseFn;
		
		$this->transOff = 0;
		if ($this->_transOK && $autoComplete) {
			if (!$this->CommitTrans()) {
				$this->_transOK = false;
				if ($this->debug) ADOConnection::outp("Smart Commit failed");
			} else
				if ($this->debug) ADOConnection::outp("Smart Commit occurred");
		} else {
			$this->_transOK = false;
			$this->RollbackTrans();
			if ($this->debug) ADOCOnnection::outp("Smart Rollback occurred");
		}
		
		return $this->_transOK;
	}
	
	/*
		At the end of a StartTrans/CompleteTrans block, perform a rollback.
	*/
	function FailTrans()
	{
		if ($this->debug) 
			if ($this->transOff == 0) {
				ADOConnection::outp("FailTrans outside StartTrans/CompleteTrans");
			} else {
				ADOConnection::outp("FailTrans was called");
				adodb_backtrace();
			}
		$this->_transOK = false;
	}
	
	/**
		Check if transaction has failed, only for Smart Transactions.
	*/
	function HasFailedTrans()
	{
		if ($this->transOff > 0) return $this->_transOK == false;
		return false;
	}
	
	/**
	 * Execute SQL 
	 *
	 * @param sql		SQL statement to execute, or possibly an array holding prepared statement ($sql[0] will hold sql text)
	 * @param [inputarr]	holds the input data to bind to. Null elements will be set to null.
	 * @return 		RecordSet or false
	 */
	function &Execute($sql,$inputarr=false) 
	{
		if ($this->fnExecute) {
			$fn = $this->fnExecute;
			$ret =& $fn($this,$sql,$inputarr);
			if (isset($ret)) return $ret;
		}
		if ($inputarr) {
			if (!is_array($inputarr)) $inputarr = array($inputarr);
			
			$element0 = reset($inputarr);
			# is_object check because oci8 descriptors can be passed in
			$array_2d = is_array($element0) && !is_object(reset($element0));
			//remove extra memory copy of input -mikefedyk
			unset($element0);
			
			if (!is_array($sql) && !$this->_bindInputArray) {
				$sqlarr = explode('?',$sql);
					
				if (!$array_2d) $inputarr = array($inputarr);
				foreach($inputarr as $arr) {
					$sql = ''; $i = 0;
					//Use each() instead of foreach to reduce memory usage -mikefedyk
					while(list(, $v) = each($arr)) {
						$sql .= $sqlarr[$i];
						// from Ron Baldwin 
						// Only quote string types	
						$typ = gettype($v);
						if ($typ == 'string')
							//New memory copy of input created here -mikefedyk
							$sql .= $this->qstr($v);
						else if ($typ == 'double')
							$sql .= str_replace(',','.',$v); // locales fix so 1.1 does not get converted to 1,1
						else if ($typ == 'boolean')
							$sql .= $v ? $this->true : $this->false;
						else if ($typ == 'object') {
							if (method_exists($v, '__toString')) $sql .= $this->qstr($v->__toString());
							else $sql .= $this->qstr((string) $v);
						} else if ($v === null)
							$sql .= 'NULL';
						else
							$sql .= $v;
						$i += 1;
					}
					if (isset($sqlarr[$i])) {
						$sql .= $sqlarr[$i];
						if ($i+1 != sizeof($sqlarr)) ADOConnection::outp( "Input Array does not match ?: ".htmlspecialchars($sql));
					} else if ($i != sizeof($sqlarr))	
						ADOConnection::outp( "Input array does not match ?: ".htmlspecialchars($sql));
		
					$ret =& $this->_Execute($sql);
					if (!$ret) return $ret;
				}	
			} else {
				if ($array_2d) {
					if (is_string($sql))
						$stmt = $this->Prepare($sql);
					else
						$stmt = $sql;
						
					foreach($inputarr as $arr) {
						$ret =& $this->_Execute($stmt,$arr);
						if (!$ret) return $ret;
					}
				} else {
					$ret =& $this->_Execute($sql,$inputarr);
				}
			}
		} else {
			$ret =& $this->_Execute($sql,false);
		}
		return $ret;
	}
	
	
	function &_Execute($sql,$inputarr=false)
	{
		if ($this->debug) {
			global $ADODB_INCLUDED_LIB;
			if (empty($ADODB_INCLUDED_LIB)) include(ADODB_DIR.'/adodb-lib.inc.php');
			$this->_queryID = _adodb_debug_execute($this, $sql,$inputarr);
		} else {
			$this->_queryID = @$this->_query($sql,$inputarr);
		}
		
		/************************
		// OK, query executed
		*************************/
		if ($this->_queryID === false) { // error handling if query fails
			if ($this->debug == 99) adodb_backtrace(true,5);	
			$fn = $this->raiseErrorFn;
			if ($fn) {
				$fn($this->databaseType,'EXECUTE',$this->ErrorNo(),$this->ErrorMsg(),$sql,$inputarr,$this);
			} 
			$false = false;
			return $false;
		} 
		
		if ($this->_queryID === true) { // return simplified recordset for inserts/updates/deletes with lower overhead
			$rs =& new ADORecordSet_empty();
			return $rs;
		}
		
		// return real recordset from select statement
		$rsclass = $this->rsPrefix.$this->databaseType;
		$rs = new $rsclass($this->_queryID,$this->fetchMode);
		$rs->connection = &$this; // Pablo suggestion
		$rs->Init();
		if (is_array($sql)) $rs->sql = $sql[0];
		else $rs->sql = $sql;
		if ($rs->_numOfRows <= 0) {
		global $ADODB_COUNTRECS;
			if ($ADODB_COUNTRECS) {
				if (!$rs->EOF) { 
					$rs = &$this->_rs2rs($rs,-1,-1,!is_array($sql));
					$rs->_queryID = $this->_queryID;
				} else
					$rs->_numOfRows = 0;
			}
		}
		return $rs;
	}
	function CreateSequence($seqname='adodbseq',$startID=1)
	{
		if (empty($this->_genSeqSQL)) return false;
		return $this->Execute(sprintf($this->_genSeqSQL,$seqname,$startID));
	}
	function DropSequence($seqname='adodbseq')
	{
		if (empty($this->_dropSeqSQL)) return false;
		return $this->Execute(sprintf($this->_dropSeqSQL,$seqname));
	}
	/**
	 * Generates a sequence id and stores it in $this->genID;
	 * GenID is only available if $this->hasGenID = true;
	 *
	 * @param seqname		name of sequence to use
	 * @param startID		if sequence does not exist, start at this ID
	 * @return		0 if not supported, otherwise a sequence id
	 */
	function GenID($seqname='adodbseq',$startID=1)
	{
		if (!$this->hasGenID) {
			return 0; // formerly returns false pre 1.60
		}
		
		$getnext = sprintf($this->_genIDSQL,$seqname);
		
		$holdtransOK = $this->_transOK;
		
		$save_handler = $this->raiseErrorFn;
		$this->raiseErrorFn = '';
		@($rs = $this->Execute($getnext));
		$this->raiseErrorFn = $save_handler;
		
		if (!$rs) {
			$this->_transOK = $holdtransOK; //if the status was ok before reset
			$createseq = $this->Execute(sprintf($this->_genSeqSQL,$seqname,$startID));
			$rs = $this->Execute($getnext);
		}
		if ($rs && !$rs->EOF) $this->genID = reset($rs->fields);
		else $this->genID = 0; // false
	
		if ($rs) $rs->Close();
		return $this->genID;
	}	
	/**
	 * @param $table string name of the table, not needed by all databases (eg. mysql), default ''
	 * @param $column string name of the column, not needed by all databases (eg. mysql), default ''
	 * @return  the last inserted ID. Not all databases support this.
	 */ 
	function Insert_ID($table='',$column='')
	{
		if ($this->_logsql && $this->lastInsID) return $this->lastInsID;
		if ($this->hasInsertID) return $this->_insertid($table,$column);
		if ($this->debug) {
			ADOConnection::outp( 'Insert_ID error
');
			adodb_backtrace();
		}
		return false;
	}
	/**
	 * Portable Insert ID. Pablo Roca 
	 *
	 * @return  the last inserted ID. All databases support this. But aware possible
	 * problems in multiuser environments. Heavy test this before deploying.
	 */ 
	function PO_Insert_ID($table="", $id="") 
	{
	   if ($this->hasInsertID){
		   return $this->Insert_ID($table,$id);
	   } else {
		   return $this->GetOne("SELECT MAX($id) FROM $table");
	   }
	}
	/**
	* @return # rows affected by UPDATE/DELETE
	*/ 
	function Affected_Rows()
	{
		if ($this->hasAffectedRows) {
			if ($this->fnExecute === 'adodb_log_sql') {
				if ($this->_logsql && $this->_affected !== false) return $this->_affected;
			}
			$val = $this->_affectedrows();
			return ($val < 0) ? false : $val;
		}
				  
		if ($this->debug) ADOConnection::outp( 'Affected_Rows error
',false);
		return false;
	}
	
	
	/**
	 * @return  the last error message
	 */
	function ErrorMsg()
	{
		if ($this->_errorMsg) return '!! '.strtoupper($this->dataProvider.' '.$this->databaseType).': '.$this->_errorMsg;
		else return '';
	}
	
	
	/**
	 * @return the last error number. Normally 0 means no error.
	 */
	function ErrorNo() 
	{
		return ($this->_errorMsg) ? -1 : 0;
	}
	
	function MetaError($err=false)
	{
		include_once(ADODB_DIR."/adodb-error.inc.php");
		if ($err === false) $err = $this->ErrorNo();
		return adodb_error($this->dataProvider,$this->databaseType,$err);
	}
	
	function MetaErrorMsg($errno)
	{
		include_once(ADODB_DIR."/adodb-error.inc.php");
		return adodb_errormsg($errno);
	}
	
	/**
	 * @returns an array with the primary key columns in it.
	 */
	function MetaPrimaryKeys($table, $owner=false)
	{
	// owner not used in base class - see oci8
		$p = array();
		$objs =& $this->MetaColumns($table);
		if ($objs) {
			foreach($objs as $v) {
				if (!empty($v->primary_key))
					$p[] = $v->name;
			}
		}
		if (sizeof($p)) return $p;
		if (function_exists('ADODB_VIEW_PRIMARYKEYS'))
			return ADODB_VIEW_PRIMARYKEYS($this->databaseType, $this->database, $table, $owner);
		return false;
	}
	
	/**
	 * @returns assoc array where keys are tables, and values are foreign keys
	 */
	function MetaForeignKeys($table, $owner=false, $upper=false)
	{
		return false;
	}
	/**
	 * Choose a database to connect to. Many databases do not support this.
	 *
	 * @param dbName 	is the name of the database to select
	 * @return 		true or false
	 */
	function SelectDB($dbName) 
	{return false;}
	
	
	/**
	* Will select, getting rows from $offset (1-based), for $nrows. 
	* This simulates the MySQL "select * from table limit $offset,$nrows" , and
	* the PostgreSQL "select * from table limit $nrows offset $offset". Note that
	* MySQL and PostgreSQL parameter ordering is the opposite of the other.
	* eg. 
	*  SelectLimit('select * from table',3); will return rows 1 to 3 (1-based)
	*  SelectLimit('select * from table',3,2); will return rows 3 to 5 (1-based)
	*
	* Uses SELECT TOP for Microsoft databases (when $this->hasTop is set)
	* BUG: Currently SelectLimit fails with $sql with LIMIT or TOP clause already set
	*
	* @param sql
	* @param [offset]	is the row to start calculations from (1-based)
	* @param [nrows]		is the number of rows to get
	* @param [inputarr]	array of bind variables
	* @param [secs2cache]		is a private parameter only used by jlim
	* @return		the recordset ($rs->databaseType == 'array')
 	*/
	function &SelectLimit($sql,$nrows=-1,$offset=-1, $inputarr=false,$secs2cache=0)
	{
		if ($this->hasTop && $nrows > 0) {
		// suggested by Reinhard Balling. Access requires top after distinct 
		 // Informix requires first before distinct - F Riosa
			$ismssql = (strpos($this->databaseType,'mssql') !== false);
			if ($ismssql) $isaccess = false;
			else $isaccess = (strpos($this->databaseType,'access') !== false);
			
			if ($offset <= 	0) {
				
					// access includes ties in result
					if ($isaccess) {
						$sql = preg_replace(
						'/(^\s*select\s+(distinctrow|distinct)?)/i','\\1 '.$this->hasTop.' '.((integer)$nrows).' ',$sql);
						if ($secs2cache != 0) {
							$ret =& $this->CacheExecute($secs2cache, $sql,$inputarr);
						} else {
							$ret =& $this->Execute($sql,$inputarr);
						}
						return $ret; // PHP5 fix
					} else if ($ismssql){
						$sql = preg_replace(
						'/(^\s*select\s+(distinctrow|distinct)?)/i','\\1 '.$this->hasTop.' '.((integer)$nrows).' ',$sql);
					} else {
						$sql = preg_replace(
						'/(^\s*select\s)/i','\\1 '.$this->hasTop.' '.((integer)$nrows).' ',$sql);
					}
			} else {
				$nn = $nrows + $offset;
				if ($isaccess || $ismssql) {
					$sql = preg_replace(
					'/(^\s*select\s+(distinctrow|distinct)?)/i','\\1 '.$this->hasTop.' '.$nn.' ',$sql);
				} else {
					$sql = preg_replace(
					'/(^\s*select\s)/i','\\1 '.$this->hasTop.' '.$nn.' ',$sql);
				}
			}
		}
		
		// if $offset>0, we want to skip rows, and $ADODB_COUNTRECS is set, we buffer  rows
		// 0 to offset-1 which will be discarded anyway. So we disable $ADODB_COUNTRECS.
		global $ADODB_COUNTRECS;
		
		$savec = $ADODB_COUNTRECS;
		$ADODB_COUNTRECS = false;
			
		if ($offset>0){
			if ($secs2cache != 0) $rs = &$this->CacheExecute($secs2cache,$sql,$inputarr);
			else $rs = &$this->Execute($sql,$inputarr);
		} else {
			if ($secs2cache != 0) $rs = &$this->CacheExecute($secs2cache,$sql,$inputarr);
			else $rs = &$this->Execute($sql,$inputarr);
		}
		$ADODB_COUNTRECS = $savec;
		if ($rs && !$rs->EOF) {
			$rs =& $this->_rs2rs($rs,$nrows,$offset);
		}
		//print_r($rs);
		return $rs;
	}
	
	/**
	* Create serializable recordset. Breaks rs link to connection.
	*
	* @param rs			the recordset to serialize
	*/
	function &SerializableRS(&$rs)
	{
		$rs2 =& $this->_rs2rs($rs);
		$ignore = false;
		$rs2->connection =& $ignore;
		
		return $rs2;
	}
	
	/**
	* Convert database recordset to an array recordset
	* input recordset's cursor should be at beginning, and
	* old $rs will be closed.
	*
	* @param rs			the recordset to copy
	* @param [nrows]  	number of rows to retrieve (optional)
	* @param [offset] 	offset by number of rows (optional)
	* @return 			the new recordset
	*/
	function &_rs2rs(&$rs,$nrows=-1,$offset=-1,$close=true)
	{
		if (! $rs) {
			$false = false;
			return $false;
		}
		$dbtype = $rs->databaseType;
		if (!$dbtype) {
			$rs = &$rs;  // required to prevent crashing in 4.2.1, but does not happen in 4.3.1 -- why ?
			return $rs;
		}
		if (($dbtype == 'array' || $dbtype == 'csv') && $nrows == -1 && $offset == -1) {
			$rs->MoveFirst();
			$rs = &$rs; // required to prevent crashing in 4.2.1, but does not happen in 4.3.1-- why ?
			return $rs;
		}
		$flds = array();
		for ($i=0, $max=$rs->FieldCount(); $i < $max; $i++) {
			$flds[] = $rs->FetchField($i);
		}
		$arr =& $rs->GetArrayLimit($nrows,$offset);
		//print_r($arr);
		if ($close) $rs->Close();
		
		$arrayClass = $this->arrayClass;
		
		$rs2 = new $arrayClass();
		$rs2->connection = &$this;
		$rs2->sql = $rs->sql;
		$rs2->dataProvider = $this->dataProvider;
		$rs2->InitArrayFields($arr,$flds);
		$rs2->fetchMode = isset($rs->adodbFetchMode) ? $rs->adodbFetchMode : $rs->fetchMode;
		return $rs2;
	}
	
	/*
	* Return all rows. Compat with PEAR DB
	*/
	function &GetAll($sql, $inputarr=false)
	{
		$arr =& $this->GetArray($sql,$inputarr);
		return $arr;
	}
	
	function &GetAssoc($sql, $inputarr=false,$force_array = false, $first2cols = false)
	{
		$rs =& $this->Execute($sql, $inputarr);
		if (!$rs) {
			$false = false;
			return $false;
		}
		$arr =& $rs->GetAssoc($force_array,$first2cols);
		return $arr;
	}
	
	function &CacheGetAssoc($secs2cache, $sql=false, $inputarr=false,$force_array = false, $first2cols = false)
	{
		if (!is_numeric($secs2cache)) {
			$first2cols = $force_array;
			$force_array = $inputarr;
		}
		$rs =& $this->CacheExecute($secs2cache, $sql, $inputarr);
		if (!$rs) {
			$false = false;
			return $false;
		}
		$arr =& $rs->GetAssoc($force_array,$first2cols);
		return $arr;
	}
	
	/**
	* Return first element of first row of sql statement. Recordset is disposed
	* for you.
	*
	* @param sql			SQL statement
	* @param [inputarr]		input bind array
	*/
	function GetOne($sql,$inputarr=false)
	{
	global $ADODB_COUNTRECS;
		$crecs = $ADODB_COUNTRECS;
		$ADODB_COUNTRECS = false;
		
		$ret = false;
		$rs = &$this->Execute($sql,$inputarr);
		if ($rs) {	
			if (!$rs->EOF) $ret = reset($rs->fields);
			$rs->Close();
		}
		$ADODB_COUNTRECS = $crecs;
		return $ret;
	}
	
	function CacheGetOne($secs2cache,$sql=false,$inputarr=false)
	{
		$ret = false;
		$rs = &$this->CacheExecute($secs2cache,$sql,$inputarr);
		if ($rs) {		
			if (!$rs->EOF) $ret = reset($rs->fields);
			$rs->Close();
		} 
		
		return $ret;
	}
	
	function GetCol($sql, $inputarr = false, $trim = false)
	{
	  	$rv = false;
	  	$rs = &$this->Execute($sql, $inputarr);
	  	if ($rs) {
			$rv = array();
	   		if ($trim) {
				while (!$rs->EOF) {
					$rv[] = trim(reset($rs->fields));
					$rs->MoveNext();
		   		}
			} else {
				while (!$rs->EOF) {
					$rv[] = reset($rs->fields);
					$rs->MoveNext();
		   		}
			}
	   		$rs->Close();
	  	}
	  	return $rv;
	}
	
	function CacheGetCol($secs, $sql = false, $inputarr = false,$trim=false)
	{
	  	$rv = false;
	  	$rs = &$this->CacheExecute($secs, $sql, $inputarr);
	  	if ($rs) {
			if ($trim) {
				while (!$rs->EOF) {
					$rv[] = trim(reset($rs->fields));
					$rs->MoveNext();
		   		}
			} else {
				while (!$rs->EOF) {
					$rv[] = reset($rs->fields);
					$rs->MoveNext();
		   		}
			}
	   		$rs->Close();
	  	}
	  	return $rv;
	}
	
	function &Transpose(&$rs)
	{
		$rs2 =& $this->_rs2rs($rs);
		$false = false;
		if (!$rs2) return $false;
		
		$rs2->_transpose();
		return $rs2;
	}
 
	/*
		Calculate the offset of a date for a particular database and generate
			appropriate SQL. Useful for calculating future/past dates and storing
			in a database.
			
		If dayFraction=1.5 means 1.5 days from now, 1.0/24 for 1 hour.
	*/
	function OffsetDate($dayFraction,$date=false)
	{		
		if (!$date) $date = $this->sysDate;
		return  '('.$date.'+'.$dayFraction.')';
	}
	
	
	/**
	*
	* @param sql			SQL statement
	* @param [inputarr]		input bind array
	*/
	function &GetArray($sql,$inputarr=false)
	{
	global $ADODB_COUNTRECS;
		
		$savec = $ADODB_COUNTRECS;
		$ADODB_COUNTRECS = false;
		$rs =& $this->Execute($sql,$inputarr);
		$ADODB_COUNTRECS = $savec;
		if (!$rs) 
			if (defined('ADODB_PEAR')) {
				$cls = ADODB_PEAR_Error();
				return $cls;
			} else {
				$false = false;
				return $false;
			}
		$arr =& $rs->GetArray();
		$rs->Close();
		return $arr;
	}
	
	function &CacheGetAll($secs2cache,$sql=false,$inputarr=false)
	{
		$arr =& $this->CacheGetArray($secs2cache,$sql,$inputarr);
		return $arr;
	}
	
	function &CacheGetArray($secs2cache,$sql=false,$inputarr=false)
	{
	global $ADODB_COUNTRECS;
		
		$savec = $ADODB_COUNTRECS;
		$ADODB_COUNTRECS = false;
		$rs =& $this->CacheExecute($secs2cache,$sql,$inputarr);
		$ADODB_COUNTRECS = $savec;
		
		if (!$rs) 
			if (defined('ADODB_PEAR')) {
				$cls = ADODB_PEAR_Error();
				return $cls;
			} else {
				$false = false;
				return $false;
			}
		$arr =& $rs->GetArray();
		$rs->Close();
		return $arr;
	}
	
	
	
	/**
	* Return one row of sql statement. Recordset is disposed for you.
	*
	* @param sql			SQL statement
	* @param [inputarr]		input bind array
	*/
	function &GetRow($sql,$inputarr=false)
	{
	global $ADODB_COUNTRECS;
		$crecs = $ADODB_COUNTRECS;
		$ADODB_COUNTRECS = false;
		
		$rs =& $this->Execute($sql,$inputarr);
		
		$ADODB_COUNTRECS = $crecs;
		if ($rs) {
			if (!$rs->EOF) $arr = $rs->fields;
			else $arr = array();
			$rs->Close();
			return $arr;
		}
		
		$false = false;
		return $false;
	}
	
	function &CacheGetRow($secs2cache,$sql=false,$inputarr=false)
	{
		$rs =& $this->CacheExecute($secs2cache,$sql,$inputarr);
		if ($rs) {
			$arr = false;
			if (!$rs->EOF) $arr = $rs->fields;
			$rs->Close();
			return $arr;
		}
		$false = false;
		return $false;
	}
	
	/**
	* Insert or replace a single record. Note: this is not the same as MySQL's replace. 
	* ADOdb's Replace() uses update-insert semantics, not insert-delete-duplicates of MySQL.
	* Also note that no table locking is done currently, so it is possible that the
	* record be inserted twice by two programs...
	*
	* $this->Replace('products', array('prodname' =>"'Nails'","price" => 3.99), 'prodname');
	*
	* $table		table name
	* $fieldArray	associative array of data (you must quote strings yourself).
	* $keyCol		the primary key field name or if compound key, array of field names
	* autoQuote		set to true to use a hueristic to quote strings. Works with nulls and numbers
	*					but does not work with dates nor SQL functions.
	* has_autoinc	the primary key is an auto-inc field, so skip in insert.
	*
	* Currently blob replace not supported
	*
	* returns 0 = fail, 1 = update, 2 = insert 
	*/
	
	function Replace($table, $fieldArray, $keyCol, $autoQuote=false, $has_autoinc=false)
	{
		global $ADODB_INCLUDED_LIB;
		if (empty($ADODB_INCLUDED_LIB)) include(ADODB_DIR.'/adodb-lib.inc.php');
		
		return _adodb_replace($this, $table, $fieldArray, $keyCol, $autoQuote, $has_autoinc);
	}
	
	
	/**
	* Will select, getting rows from $offset (1-based), for $nrows. 
	* This simulates the MySQL "select * from table limit $offset,$nrows" , and
	* the PostgreSQL "select * from table limit $nrows offset $offset". Note that
	* MySQL and PostgreSQL parameter ordering is the opposite of the other.
	* eg. 
	*  CacheSelectLimit(15,'select * from table',3); will return rows 1 to 3 (1-based)
	*  CacheSelectLimit(15,'select * from table',3,2); will return rows 3 to 5 (1-based)
	*
	* BUG: Currently CacheSelectLimit fails with $sql with LIMIT or TOP clause already set
	*
	* @param [secs2cache]	seconds to cache data, set to 0 to force query. This is optional
	* @param sql
	* @param [offset]	is the row to start calculations from (1-based)
	* @param [nrows]	is the number of rows to get
	* @param [inputarr]	array of bind variables
	* @return		the recordset ($rs->databaseType == 'array')
 	*/
	function &CacheSelectLimit($secs2cache,$sql,$nrows=-1,$offset=-1,$inputarr=false)
	{	
		if (!is_numeric($secs2cache)) {
			if ($sql === false) $sql = -1;
			if ($offset == -1) $offset = false;
									  // sql,	nrows, offset,inputarr
			$rs =& $this->SelectLimit($secs2cache,$sql,$nrows,$offset,$this->cacheSecs);
		} else {
			if ($sql === false) ADOConnection::outp( "Warning: \$sql missing from CacheSelectLimit()");
			$rs =& $this->SelectLimit($sql,$nrows,$offset,$inputarr,$secs2cache);
		}
		return $rs;
	}
	
	
	/**
	* Flush cached recordsets that match a particular $sql statement. 
	* If $sql == false, then we purge all files in the cache.
 	*/
	
	/**
   * Flush cached recordsets that match a particular $sql statement. 
   * If $sql == false, then we purge all files in the cache.
    */
	function CacheFlush($sql=false,$inputarr=false)
	{
	global $ADODB_CACHE_DIR;
	
		if ($this->memCache) {
		global $ADODB_INCLUDED_MEMCACHE;
		
			$key = false;
			if (empty($ADODB_INCLUDED_MEMCACHE)) include(ADODB_DIR.'/adodb-memcache.lib.inc.php');
			if ($sql) $key = $this->_gencachename($sql.serialize($inputarr),false,true);
			FlushMemCache($key, $this->memCacheHost, $this->memCachePort, $this->debug);
			return;
		}
	
		if (strlen($ADODB_CACHE_DIR) > 1 && !$sql) {
         /*if (strncmp(PHP_OS,'WIN',3) === 0)
            $dir = str_replace('/', '\\', $ADODB_CACHE_DIR);
         else */
            $dir = $ADODB_CACHE_DIR;
            
         if ($this->debug) {
            ADOConnection::outp( "CacheFlush: $dir
\n", $this->_dirFlush($dir),"
");
         } else {
            $this->_dirFlush($dir);
         }
         return;
      } 
      
      global $ADODB_INCLUDED_CSV;
      if (empty($ADODB_INCLUDED_CSV)) include(ADODB_DIR.'/adodb-csvlib.inc.php');
      
      $f = $this->_gencachename($sql.serialize($inputarr),false);
      adodb_write_file($f,''); // is adodb_write_file needed?
      if (!@unlink($f)) {
         if ($this->debug) ADOConnection::outp( "CacheFlush: failed for $f");
      }
   }
   
   /**
   * Private function to erase all of the files and subdirectories in a directory.
   *
   * Just specify the directory, and tell it if you want to delete the directory or just clear it out.
   * Note: $kill_top_level is used internally in the function to flush subdirectories.
   */
   function _dirFlush($dir, $kill_top_level = false) {
      if(!$dh = @opendir($dir)) return;
      
      while (($obj = readdir($dh))) {
         if($obj=='.' || $obj=='..')
            continue;
			
         if (!@unlink($dir.'/'.$obj))
			  $this->_dirFlush($dir.'/'.$obj, true);
      }
      if ($kill_top_level === true)
         @rmdir($dir);
      return true;
   }
   
   
	function xCacheFlush($sql=false,$inputarr=false)
	{
	global $ADODB_CACHE_DIR;
	
		if ($this->memCache) {
			global $ADODB_INCLUDED_MEMCACHE;
			$key = false;
			if (empty($ADODB_INCLUDED_MEMCACHE)) include(ADODB_DIR.'/adodb-memcache.lib.inc.php');
			if ($sql) $key = $this->_gencachename($sql.serialize($inputarr),false,true);
			flushmemCache($key, $this->memCacheHost, $this->memCachePort, $this->debug);
			return;
		}
		if (strlen($ADODB_CACHE_DIR) > 1 && !$sql) {
			if (strncmp(PHP_OS,'WIN',3) === 0) {
				$cmd = 'del /s '.str_replace('/','\\',$ADODB_CACHE_DIR).'\adodb_*.cache';
			} else {
				//$cmd = 'find "'.$ADODB_CACHE_DIR.'" -type f -maxdepth 1 -print0 | xargs -0 rm -f';
				$cmd = 'rm -rf '.$ADODB_CACHE_DIR.'/[0-9a-f][0-9a-f]/'; 
				// old version 'rm -f `find '.$ADODB_CACHE_DIR.' -name adodb_*.cache`';
			}
			if ($this->debug) {
				ADOConnection::outp( "CacheFlush: $cmd
\n", system($cmd),"
");
			} else {
				exec($cmd);
			}
			return;
		} 
		
		global $ADODB_INCLUDED_CSV;
		if (empty($ADODB_INCLUDED_CSV)) include(ADODB_DIR.'/adodb-csvlib.inc.php');
		
		$f = $this->_gencachename($sql.serialize($inputarr),false);
		adodb_write_file($f,''); // is adodb_write_file needed?
		if (!@unlink($f)) {
			if ($this->debug) ADOConnection::outp( "CacheFlush: failed for $f");
		}
	}
	
	/**
	* Private function to generate filename for caching.
	* Filename is generated based on:
	*
	*  - sql statement
	*  - database type (oci8, ibase, ifx, etc)
	*  - database name
	*  - userid
	*  - setFetchMode (adodb 4.23)
	*
	* When not in safe mode, we create 256 sub-directories in the cache directory ($ADODB_CACHE_DIR). 
	* Assuming that we can have 50,000 files per directory with good performance, 
	* then we can scale to 12.8 million unique cached recordsets. Wow!
 	*/
	function _gencachename($sql,$createdir,$memcache=false)
	{
	global $ADODB_CACHE_DIR;
	static $notSafeMode;
		
		if ($this->fetchMode === false) { 
		global $ADODB_FETCH_MODE;
			$mode = $ADODB_FETCH_MODE;
		} else {
			$mode = $this->fetchMode;
		}
		$m = md5($sql.$this->databaseType.$this->database.$this->user.$mode);
		if ($memcache) return $m;
		
		if (!isset($notSafeMode)) $notSafeMode = !ini_get('safe_mode');
		$dir = ($notSafeMode) ? $ADODB_CACHE_DIR.'/'.substr($m,0,2) : $ADODB_CACHE_DIR;
			
		if ($createdir && $notSafeMode && !file_exists($dir)) {
			$oldu = umask(0);
			if (!mkdir($dir,0771)) 
				if ($this->debug) ADOConnection::outp( "Unable to mkdir $dir for $sql");
			umask($oldu);
		}
		return $dir.'/adodb_'.$m.'.cache';
	}
	
	
	/**
	 * Execute SQL, caching recordsets.
	 *
	 * @param [secs2cache]	seconds to cache data, set to 0 to force query. 
	 *					  This is an optional parameter.
	 * @param sql		SQL statement to execute
	 * @param [inputarr]	holds the input data  to bind to
	 * @return 		RecordSet or false
	 */
	function &CacheExecute($secs2cache,$sql=false,$inputarr=false)
	{
			
		if (!is_numeric($secs2cache)) {
			$inputarr = $sql;
			$sql = $secs2cache;
			$secs2cache = $this->cacheSecs;
		}
		
		if (is_array($sql)) {
			$sqlparam = $sql;
			$sql = $sql[0];
		} else
			$sqlparam = $sql;
			
		if ($this->memCache) {
			global $ADODB_INCLUDED_MEMCACHE;
			if (empty($ADODB_INCLUDED_MEMCACHE)) include(ADODB_DIR.'/adodb-memcache.lib.inc.php');
			$md5file = $this->_gencachename($sql.serialize($inputarr),false,true);
		} else {
		global $ADODB_INCLUDED_CSV;
			if (empty($ADODB_INCLUDED_CSV)) include(ADODB_DIR.'/adodb-csvlib.inc.php');
			$md5file = $this->_gencachename($sql.serialize($inputarr),true);
		}
		$err = '';
		
		if ($secs2cache > 0){
			if ($this->memCache)
				$rs = &getmemCache($md5file,$err,$secs2cache, $this->memCacheHost, $this->memCachePort);
			else
				$rs = &csv2rs($md5file,$err,$secs2cache,$this->arrayClass);
			$this->numCacheHits += 1;
		} else {
			$err='Timeout 1';
			$rs = false;
			$this->numCacheMisses += 1;
		}
		if (!$rs) {
		// no cached rs found
			if ($this->debug) {
				if (get_magic_quotes_runtime() && !$this->memCache) {
					ADOConnection::outp("Please disable magic_quotes_runtime - it corrupts cache files :(");
				}
				if ($this->debug !== -1) ADOConnection::outp( " $md5file cache failure: $err (see sql below)");
			}
			
			$rs = &$this->Execute($sqlparam,$inputarr);
			if ($rs && $this->memCache) {
				$rs = &$this->_rs2rs($rs); // read entire recordset into memory immediately
				if(!putmemCache($md5file, $rs, $this->memCacheHost, $this->memCachePort, $this->memCacheCompress, $this->debug)) {
					if ($fn = $this->raiseErrorFn)
						$fn($this->databaseType,'CacheExecute',-32000,"Cache write error",$md5file,$sql,$this);
					if ($this->debug) ADOConnection::outp( " Cache write error");
				}
			} else
			if ($rs) {
				$eof = $rs->EOF;
				$rs = &$this->_rs2rs($rs); // read entire recordset into memory immediately
				$txt = _rs2serialize($rs,false,$sql); // serialize
		
				if (!adodb_write_file($md5file,$txt,$this->debug)) {
					if ($fn = $this->raiseErrorFn) {
						$fn($this->databaseType,'CacheExecute',-32000,"Cache write error",$md5file,$sql,$this);
					}
					if ($this->debug) ADOConnection::outp( " Cache write error");
				}
				if ($rs->EOF && !$eof) {
					$rs->MoveFirst();
					//$rs = &csv2rs($md5file,$err);		
					$rs->connection = &$this; // Pablo suggestion
				}  
				
			} else
			if (!$this->memCache)
				@unlink($md5file);
		} else {
			$this->_errorMsg = '';
			$this->_errorCode = 0;
			
			if ($this->fnCacheExecute) {
				$fn = $this->fnCacheExecute;
				$fn($this, $secs2cache, $sql, $inputarr);
			}
		// ok, set cached object found
			$rs->connection = &$this; // Pablo suggestion
			if ($this->debug){ 
					
				$inBrowser = isset($_SERVER['HTTP_USER_AGENT']);
				$ttl = $rs->timeCreated + $secs2cache - time();
				$s = is_array($sql) ? $sql[0] : $sql;
				if ($inBrowser) $s = ''.htmlspecialchars($s).'';
				
				ADOConnection::outp( " $md5file reloaded, ttl=$ttl [ $s ]");
			}
		}
		return $rs;
	}
	
	
	/* 
		Similar to PEAR DB's autoExecute(), except that 
		$mode can be 'INSERT' or 'UPDATE' or DB_AUTOQUERY_INSERT or DB_AUTOQUERY_UPDATE
		If $mode == 'UPDATE', then $where is compulsory as a safety measure.
		
		$forceUpdate means that even if the data has not changed, perform update.
	 */
	function& AutoExecute($table, $fields_values, $mode = 'INSERT', $where = FALSE, $forceUpdate=true, $magicq=false) 
	{
		$false = false;
		$sql = 'SELECT * FROM '.$table;  
		if ($where!==FALSE) $sql .= ' WHERE '.$where;
		else if ($mode == 'UPDATE' || $mode == 2 /* DB_AUTOQUERY_UPDATE */) {
			ADOConnection::outp('AutoExecute: Illegal mode=UPDATE with empty WHERE clause');
			return $false;
		}
		$rs =& $this->SelectLimit($sql,1);
		if (!$rs) return $false; // table does not exist
		$rs->tableName = $table;
		
		switch((string) $mode) {
		case 'UPDATE':
		case '2':
			$sql = $this->GetUpdateSQL($rs, $fields_values, $forceUpdate, $magicq);
			break;
		case 'INSERT':
		case '1':
			$sql = $this->GetInsertSQL($rs, $fields_values, $magicq);
			break;
		default:
			ADOConnection::outp("AutoExecute: Unknown mode=$mode");
			return $false;
		}
		$ret = false;
		if ($sql) $ret = $this->Execute($sql);
		if ($ret) $ret = true;
		return $ret;
	}
	
	
	/**
	 * Generates an Update Query based on an existing recordset.
	 * $arrFields is an associative array of fields with the value
	 * that should be assigned.
	 *
	 * Note: This function should only be used on a recordset
	 *	   that is run against a single table and sql should only 
	 *		 be a simple select stmt with no groupby/orderby/limit
	 *
	 * "Jonathan Younger" 
  	 */
	function GetUpdateSQL(&$rs, $arrFields,$forceUpdate=false,$magicq=false,$force=null)
	{
		global $ADODB_INCLUDED_LIB;
        //********************************************************//
        //This is here to maintain compatibility
        //with older adodb versions. Sets force type to force nulls if $forcenulls is set.
		if (!isset($force)) {
				global $ADODB_FORCE_TYPE;
			    $force = $ADODB_FORCE_TYPE;
		}
		//********************************************************//
		if (empty($ADODB_INCLUDED_LIB)) include(ADODB_DIR.'/adodb-lib.inc.php');
		return _adodb_getupdatesql($this,$rs,$arrFields,$forceUpdate,$magicq,$force);
	}
	/**
	 * Generates an Insert Query based on an existing recordset.
	 * $arrFields is an associative array of fields with the value
	 * that should be assigned.
	 *
	 * Note: This function should only be used on a recordset
	 *	   that is run against a single table.
  	 */
	function GetInsertSQL(&$rs, $arrFields,$magicq=false,$force=null)
	{	
		global $ADODB_INCLUDED_LIB;
		if (!isset($force)) {
			global $ADODB_FORCE_TYPE;
			$force = $ADODB_FORCE_TYPE;
			
		}
		if (empty($ADODB_INCLUDED_LIB)) include(ADODB_DIR.'/adodb-lib.inc.php');
		return _adodb_getinsertsql($this,$rs,$arrFields,$magicq,$force);
	}
	
	/**
	* Update a blob column, given a where clause. There are more sophisticated
	* blob handling functions that we could have implemented, but all require
	* a very complex API. Instead we have chosen something that is extremely
	* simple to understand and use. 
	*
	* Note: $blobtype supports 'BLOB' and 'CLOB', default is BLOB of course.
	*
	* Usage to update a $blobvalue which has a primary key blob_id=1 into a 
	* field blobtable.blobcolumn:
	*
	*	UpdateBlob('blobtable', 'blobcolumn', $blobvalue, 'blob_id=1');
	*
	* Insert example:
	*
	*	$conn->Execute('INSERT INTO blobtable (id, blobcol) VALUES (1, null)');
	*	$conn->UpdateBlob('blobtable','blobcol',$blob,'id=1');
	*/
	
	function UpdateBlob($table,$column,$val,$where,$blobtype='BLOB')
	{
		return $this->Execute("UPDATE $table SET $column=? WHERE $where",array($val)) != false;
	}
	/**
	* Usage:
	*	UpdateBlob('TABLE', 'COLUMN', '/path/to/file', 'ID=1');
	*	
	*	$blobtype supports 'BLOB' and 'CLOB'
	*
	*	$conn->Execute('INSERT INTO blobtable (id, blobcol) VALUES (1, null)');
	*	$conn->UpdateBlob('blobtable','blobcol',$blobpath,'id=1');
	*/
	function UpdateBlobFile($table,$column,$path,$where,$blobtype='BLOB')
	{
		$fd = fopen($path,'rb');
		if ($fd === false) return false;
		$val = fread($fd,filesize($path));
		fclose($fd);
		return $this->UpdateBlob($table,$column,$val,$where,$blobtype);
	}
	
	function BlobDecode($blob)
	{
		return $blob;
	}
	
	function BlobEncode($blob)
	{
		return $blob;
	}
	
	function SetCharSet($charset)
	{
		return false;
	}
	
	function IfNull( $field, $ifNull ) 
	{
		return " CASE WHEN $field is null THEN $ifNull ELSE $field END ";
	}
	
	function LogSQL($enable=true)
	{
		include_once(ADODB_DIR.'/adodb-perf.inc.php');
		
		if ($enable) $this->fnExecute = 'adodb_log_sql';
		else $this->fnExecute = false;
		
		$old = $this->_logsql;	
		$this->_logsql = $enable;
		if ($enable && !$old) $this->_affected = false;
		return $old;
	}
	
	function GetCharSet()
	{
		return false;
	}
	
	/**
	* Usage:
	*	UpdateClob('TABLE', 'COLUMN', $var, 'ID=1', 'CLOB');
	*
	*	$conn->Execute('INSERT INTO clobtable (id, clobcol) VALUES (1, null)');
	*	$conn->UpdateClob('clobtable','clobcol',$clob,'id=1');
	*/
	function UpdateClob($table,$column,$val,$where)
	{
		return $this->UpdateBlob($table,$column,$val,$where,'CLOB');
	}
	
	// not the fastest implementation - quick and dirty - jlim
	// for best performance, use the actual $rs->MetaType().
	function MetaType($t,$len=-1,$fieldobj=false)
	{
		
		if (empty($this->_metars)) {
			$rsclass = $this->rsPrefix.$this->databaseType;
			$this->_metars =& new $rsclass(false,$this->fetchMode); 
			$this->_metars->connection =& $this;
		}
		return $this->_metars->MetaType($t,$len,$fieldobj);
	}
	
	
	/**
	*  Change the SQL connection locale to a specified locale.
	*  This is used to get the date formats written depending on the client locale.
	*/
	function SetDateLocale($locale = 'En')
	{
		$this->locale = $locale;
		switch (strtoupper($locale))
		{
			case 'EN':
				$this->fmtDate="'Y-m-d'";
				$this->fmtTimeStamp = "'Y-m-d H:i:s'";
				break;
				
			case 'US':
				$this->fmtDate = "'m-d-Y'";
				$this->fmtTimeStamp = "'m-d-Y H:i:s'";
				break;
				
			case 'NL':
			case 'FR':
			case 'RO':
			case 'IT':
				$this->fmtDate="'d-m-Y'";
				$this->fmtTimeStamp = "'d-m-Y H:i:s'";
				break;
				
			case 'GE':
				$this->fmtDate="'d.m.Y'";
				$this->fmtTimeStamp = "'d.m.Y H:i:s'";
				break;
				
			default:
				$this->fmtDate="'Y-m-d'";
				$this->fmtTimeStamp = "'Y-m-d H:i:s'";
				break;
		}
	}
	function &GetActiveRecordsClass($class, $table,$whereOrderBy=false,$bindarr=false, $primkeyArr=false)
	{
	global $_ADODB_ACTIVE_DBS;
	
		$save = $this->SetFetchMode(ADODB_FETCH_NUM);
		if (empty($whereOrderBy)) $whereOrderBy = '1=1';
		$rows = $this->GetAll("select * from ".$table.' WHERE '.$whereOrderBy,$bindarr);
		$this->SetFetchMode($save);
		
		$false = false;
		
		if ($rows === false) {	
			return $false;
		}
		
		
		if (!isset($_ADODB_ACTIVE_DBS)) {
			include(ADODB_DIR.'/adodb-active-record.inc.php');
		}	
		if (!class_exists($class)) {
			ADOConnection::outp("Unknown class $class in GetActiveRcordsClass()");
			return $false;
		}
		$arr = array();
		foreach($rows as $row) {
		
			$obj =& new $class($table,$primkeyArr,$this);
			if ($obj->ErrorMsg()){
				$this->_errorMsg = $obj->ErrorMsg();
				return $false;
			}
			$obj->Set($row);
			$arr[] =& $obj;
		}
		return $arr;
	}
	
	function &GetActiveRecords($table,$where=false,$bindarr=false,$primkeyArr=false)
	{
		$arr =& $this->GetActiveRecordsClass('ADODB_Active_Record', $table, $where, $bindarr, $primkeyArr);
		return $arr;
	}
	
	/**
	 * Close Connection
	 */
	function Close()
	{
		$rez = $this->_close();
		$this->_connectionID = false;
		return $rez;
	}
	
	/**
	 * Begin a Transaction. Must be followed by CommitTrans() or RollbackTrans().
	 *
	 * @return true if succeeded or false if database does not support transactions
	 */
	function BeginTrans() {return false;}
	
	/* set transaction mode */
	function SetTransactionMode( $transaction_mode ) 
	{
		$transaction_mode = $this->MetaTransaction($transaction_mode, $this->dataProvider);
		$this->_transmode  = $transaction_mode;
	}
/*
http://msdn2.microsoft.com/en-US/ms173763.aspx
http://dev.mysql.com/doc/refman/5.0/en/innodb-transaction-isolation.html
http://www.postgresql.org/docs/8.1/interactive/sql-set-transaction.html
http://www.stanford.edu/dept/itss/docs/oracle/10g/server.101/b10759/statements_10005.htm
*/
	function MetaTransaction($mode,$db)
	{
		$mode = strtoupper($mode);
		$mode = str_replace('ISOLATION LEVEL ','',$mode);
		
		switch($mode) {
		case 'READ UNCOMMITTED':
			switch($db) { 
			case 'oci8':
			case 'oracle':
				return 'ISOLATION LEVEL READ COMMITTED';
			default:
				return 'ISOLATION LEVEL READ UNCOMMITTED';
			}
			break;
					
		case 'READ COMMITTED':
				return 'ISOLATION LEVEL READ COMMITTED';
			break;
			
		case 'REPEATABLE READ':
			switch($db) {
			case 'oci8':
			case 'oracle':
				return 'ISOLATION LEVEL SERIALIZABLE';
			default:
				return 'ISOLATION LEVEL REPEATABLE READ';
			}
			break;
			
		case 'SERIALIZABLE':
				return 'ISOLATION LEVEL SERIALIZABLE';
			break;
			
		default:
			return $mode;
		}
	}
	
	/**
	 * If database does not support transactions, always return true as data always commited
	 *
	 * @param $ok  set to false to rollback transaction, true to commit
	 *
	 * @return true/false.
	 */
	function CommitTrans($ok=true) 
	{ return true;}
	
	
	/**
	 * If database does not support transactions, rollbacks always fail, so return false
	 *
	 * @return true/false.
	 */
	function RollbackTrans() 
	{ return false;}
	/**
	 * return the databases that the driver can connect to. 
	 * Some databases will return an empty array.
	 *
	 * @return an array of database names.
	 */
		function MetaDatabases() 
		{
		global $ADODB_FETCH_MODE;
		
			if ($this->metaDatabasesSQL) {
				$save = $ADODB_FETCH_MODE; 
				$ADODB_FETCH_MODE = ADODB_FETCH_NUM; 
				
				if ($this->fetchMode !== false) $savem = $this->SetFetchMode(false);
				
				$arr = $this->GetCol($this->metaDatabasesSQL);
				if (isset($savem)) $this->SetFetchMode($savem);
				$ADODB_FETCH_MODE = $save; 
			
				return $arr;
			}
			
			return false;
		}
	
		
	/**
	 * @param ttype can either be 'VIEW' or 'TABLE' or false. 
	 * 		If false, both views and tables are returned.
	 *		"VIEW" returns only views
	 *		"TABLE" returns only tables
	 * @param showSchema returns the schema/user with the table name, eg. USER.TABLE
	 * @param mask  is the input mask - only supported by oci8 and postgresql
	 *
	 * @return  array of tables for current database.
	 */ 
	function &MetaTables($ttype=false,$showSchema=false,$mask=false) 
	{
	global $ADODB_FETCH_MODE;
	
		
		$false = false;
		if ($mask) {
			return $false;
		}
		if ($this->metaTablesSQL) {
			$save = $ADODB_FETCH_MODE; 
			$ADODB_FETCH_MODE = ADODB_FETCH_NUM; 
			
			if ($this->fetchMode !== false) $savem = $this->SetFetchMode(false);
			
			$rs = $this->Execute($this->metaTablesSQL);
			if (isset($savem)) $this->SetFetchMode($savem);
			$ADODB_FETCH_MODE = $save; 
			
			if ($rs === false) return $false;
			$arr =& $rs->GetArray();
			$arr2 = array();
			
			if ($hast = ($ttype && isset($arr[0][1]))) { 
				$showt = strncmp($ttype,'T',1);
			}
			
			for ($i=0; $i < sizeof($arr); $i++) {
				if ($hast) {
					if ($showt == 0) {
						if (strncmp($arr[$i][1],'T',1) == 0) $arr2[] = trim($arr[$i][0]);
					} else {
						if (strncmp($arr[$i][1],'V',1) == 0) $arr2[] = trim($arr[$i][0]);
					}
				} else
					$arr2[] = trim($arr[$i][0]);
			}
			$rs->Close();
			return $arr2;
		}
		return $false;
	}
	
	
	function _findschema(&$table,&$schema)
	{
		if (!$schema && ($at = strpos($table,'.')) !== false) {
			$schema = substr($table,0,$at);
			$table = substr($table,$at+1);
		}
	}
	
	/**
	 * List columns in a database as an array of ADOFieldObjects. 
	 * See top of file for definition of object.
	 *
	 * @param $table	table name to query
	 * @param $normalize	makes table name case-insensitive (required by some databases)
	 * @schema is optional database schema to use - not supported by all databases.
	 *
	 * @return  array of ADOFieldObjects for current table.
	 */
	function &MetaColumns($table,$normalize=true) 
	{
	global $ADODB_FETCH_MODE;
		
		$false = false;
		
		if (!empty($this->metaColumnsSQL)) {
		
			$schema = false;
			$this->_findschema($table,$schema);
		
			$save = $ADODB_FETCH_MODE;
			$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
			if ($this->fetchMode !== false) $savem = $this->SetFetchMode(false);
			$rs = $this->Execute(sprintf($this->metaColumnsSQL,($normalize)?strtoupper($table):$table));
			if (isset($savem)) $this->SetFetchMode($savem);
			$ADODB_FETCH_MODE = $save;
			if ($rs === false || $rs->EOF) return $false;
			$retarr = array();
			while (!$rs->EOF) { //print_r($rs->fields);
				$fld = new ADOFieldObject();
				$fld->name = $rs->fields[0];
				$fld->type = $rs->fields[1];
				if (isset($rs->fields[3]) && $rs->fields[3]) {
					if ($rs->fields[3]>0) $fld->max_length = $rs->fields[3];
					$fld->scale = $rs->fields[4];
					if ($fld->scale>0) $fld->max_length += 1;
				} else
					$fld->max_length = $rs->fields[2];
					
				if ($ADODB_FETCH_MODE == ADODB_FETCH_NUM) $retarr[] = $fld;	
				else $retarr[strtoupper($fld->name)] = $fld;
				$rs->MoveNext();
			}
			$rs->Close();
			return $retarr;	
		}
		return $false;
	}
	
    /**
      * List indexes on a table as an array.
      * @param table  table name to query
      * @param primary true to only show primary keys. Not actually used for most databases
	  *
      * @return array of indexes on current table. Each element represents an index, and is itself an associative array.
	  
		 Array (
		    [name_of_index] => Array
		      (
	          [unique] => true or false
	          [columns] => Array
	          (
	          	[0] => firstname
		      	[1] => lastname
	          )
		)		
      */
     function &MetaIndexes($table, $primary = false, $owner = false)
     {
	 		$false = false;
            return $false;
     }
	/**
	 * List columns names in a table as an array. 
	 * @param table	table name to query
	 *
	 * @return  array of column names for current table.
	 */ 
	function &MetaColumnNames($table, $numIndexes=false,$useattnum=false /* only for postgres */) 
	{
		$objarr =& $this->MetaColumns($table);
		if (!is_array($objarr)) {
			$false = false;
			return $false;
		}
		$arr = array();
		if ($numIndexes) {
			$i = 0;
			if ($useattnum) {
				foreach($objarr as $v) 
					$arr[$v->attnum] = $v->name;
				
			} else
				foreach($objarr as $v) $arr[$i++] = $v->name;
		} else
			foreach($objarr as $v) $arr[strtoupper($v->name)] = $v->name;
		
		return $arr;
	}
			
	/**
	 * Different SQL databases used different methods to combine strings together.
	 * This function provides a wrapper. 
	 * 
	 * param s	variable number of string parameters
	 *
	 * Usage: $db->Concat($str1,$str2);
	 * 
	 * @return concatenated string
	 */ 	 
	function Concat()
	{	
		$arr = func_get_args();
		return implode($this->concat_operator, $arr);
	}
	
	
	/**
	 * Converts a date "d" to a string that the database can understand.
	 *
	 * @param d	a date in Unix date time format.
	 *
	 * @return  date string in database date format
	 */
	function DBDate($d)
	{
		if (empty($d) && $d !== 0) return 'null';
		if (is_string($d) && !is_numeric($d)) {
			if ($d === 'null' || strncmp($d,"'",1) === 0) return $d;
			if ($this->isoDates) return "'$d'";
			$d = ADOConnection::UnixDate($d);
		}
		return adodb_date($this->fmtDate,$d);
	}
	
	function BindDate($d)
	{
		$d = $this->DBDate($d);
		if (strncmp($d,"'",1)) return $d;
		
		return substr($d,1,strlen($d)-2);
	}
	
	function BindTimeStamp($d)
	{
		$d = $this->DBTimeStamp($d);
		if (strncmp($d,"'",1)) return $d;
		
		return substr($d,1,strlen($d)-2);
	}
	
	
	/**
	 * Converts a timestamp "ts" to a string that the database can understand.
	 *
	 * @param ts	a timestamp in Unix date time format.
	 *
	 * @return  timestamp string in database timestamp format
	 */
	function DBTimeStamp($ts)
	{
		if (empty($ts) && $ts !== 0) return 'null';
		# strlen(14) allows YYYYMMDDHHMMSS format
		if (!is_string($ts) || (is_numeric($ts) && strlen($ts)<14)) 
			return adodb_date($this->fmtTimeStamp,$ts);
		
		if ($ts === 'null') return $ts;
		if ($this->isoDates && strlen($ts) !== 14) return "'$ts'";
		
		$ts = ADOConnection::UnixTimeStamp($ts);
		return adodb_date($this->fmtTimeStamp,$ts);
	}
	
	/**
	 * Also in ADORecordSet.
	 * @param $v is a date string in YYYY-MM-DD format
	 *
	 * @return date in unix timestamp format, or 0 if before TIMESTAMP_FIRST_YEAR, or false if invalid date format
	 */
	function UnixDate($v)
	{
		if (is_object($v)) {
		// odbtp support
		//( [year] => 2004 [month] => 9 [day] => 4 [hour] => 12 [minute] => 44 [second] => 8 [fraction] => 0 )
			return adodb_mktime($v->hour,$v->minute,$v->second,$v->month,$v->day, $v->year);
		}
	
		if (is_numeric($v) && strlen($v) !== 8) return $v;
		if (!preg_match( "|^([0-9]{4})[-/\.]?([0-9]{1,2})[-/\.]?([0-9]{1,2})|", 
			($v), $rr)) return false;
		if ($rr[1] <= TIMESTAMP_FIRST_YEAR) return 0;
		// h-m-s-MM-DD-YY
		return @adodb_mktime(0,0,0,$rr[2],$rr[3],$rr[1]);
	}
	
	/**
	 * Also in ADORecordSet.
	 * @param $v is a timestamp string in YYYY-MM-DD HH-NN-SS format
	 *
	 * @return date in unix timestamp format, or 0 if before TIMESTAMP_FIRST_YEAR, or false if invalid date format
	 */
	function UnixTimeStamp($v)
	{
		if (is_object($v)) {
		// odbtp support
		//( [year] => 2004 [month] => 9 [day] => 4 [hour] => 12 [minute] => 44 [second] => 8 [fraction] => 0 )
			return adodb_mktime($v->hour,$v->minute,$v->second,$v->month,$v->day, $v->year);
		}
		
		if (!preg_match( 
			"|^([0-9]{4})[-/\.]?([0-9]{1,2})[-/\.]?([0-9]{1,2})[ ,-]*(([0-9]{1,2}):?([0-9]{1,2}):?([0-9\.]{1,4}))?|", 
			($v), $rr)) return false;
			
		if ($rr[1] <= TIMESTAMP_FIRST_YEAR && $rr[2]<= 1) return 0;
	
		// h-m-s-MM-DD-YY
		if (!isset($rr[5])) return  adodb_mktime(0,0,0,$rr[2],$rr[3],$rr[1]);
		return  @adodb_mktime($rr[5],$rr[6],$rr[7],$rr[2],$rr[3],$rr[1]);
	}
	
	/**
	 * Also in ADORecordSet.
	 *
	 * Format database date based on user defined format.
	 *
	 * @param v  	is the character date in YYYY-MM-DD format, returned by database
	 * @param fmt 	is the format to apply to it, using date()
	 *
	 * @return a date formated as user desires
	 */
	 
	function UserDate($v,$fmt='Y-m-d',$gmt=false)
	{
		$tt = $this->UnixDate($v);
		// $tt == -1 if pre TIMESTAMP_FIRST_YEAR
		if (($tt === false || $tt == -1) && $v != false) return $v;
		else if ($tt == 0) return $this->emptyDate;
		else if ($tt == -1) { // pre-TIMESTAMP_FIRST_YEAR
		}
		
		return ($gmt) ? adodb_gmdate($fmt,$tt) : adodb_date($fmt,$tt);
	
	}
	
		/**
	 *
	 * @param v  	is the character timestamp in YYYY-MM-DD hh:mm:ss format
	 * @param fmt 	is the format to apply to it, using date()
	 *
	 * @return a timestamp formated as user desires
	 */
	function UserTimeStamp($v,$fmt='Y-m-d H:i:s',$gmt=false)
	{
		if (!isset($v)) return $this->emptyTimeStamp;
		# strlen(14) allows YYYYMMDDHHMMSS format
		if (is_numeric($v) && strlen($v)<14) return ($gmt) ? adodb_gmdate($fmt,$v) : adodb_date($fmt,$v);
		$tt = $this->UnixTimeStamp($v);
		// $tt == -1 if pre TIMESTAMP_FIRST_YEAR
		if (($tt === false || $tt == -1) && $v != false) return $v;
		if ($tt == 0) return $this->emptyTimeStamp;
		return ($gmt) ? adodb_gmdate($fmt,$tt) : adodb_date($fmt,$tt);
	}
	
	function escape($s,$magic_quotes=false)
	{
		return $this->addq($s,$magic_quotes);
	}
	
	/**
	* Quotes a string, without prefixing nor appending quotes. 
	*/
	function addq($s,$magic_quotes=false)
	{
		if (!$magic_quotes) {
		
			if ($this->replaceQuote[0] == '\\'){
				// only since php 4.0.5
				$s = adodb_str_replace(array('\\',"\0"),array('\\\\',"\\\0"),$s);
				//$s = str_replace("\0","\\\0", str_replace('\\','\\\\',$s));
			}
			return  str_replace("'",$this->replaceQuote,$s);
		}
		
		// undo magic quotes for "
		$s = str_replace('\\"','"',$s);
		
		if ($this->replaceQuote == "\\'")  // ' already quoted, no need to change anything
			return $s;
		else {// change \' to '' for sybase/mssql
			$s = str_replace('\\\\','\\',$s);
			return str_replace("\\'",$this->replaceQuote,$s);
		}
	}
	
	/**
	 * Correctly quotes a string so that all strings are escaped. We prefix and append
	 * to the string single-quotes.
	 * An example is  $db->qstr("Don't bother",magic_quotes_runtime());
	 * 
	 * @param s			the string to quote
	 * @param [magic_quotes]	if $s is GET/POST var, set to get_magic_quotes_gpc().
	 *				This undoes the stupidity of magic quotes for GPC.
	 *
	 * @return  quoted string to be sent back to database
	 */
	function qstr($s,$magic_quotes=false)
	{	
		if (!$magic_quotes) {
		
			if ($this->replaceQuote[0] == '\\'){
				// only since php 4.0.5
				$s = adodb_str_replace(array('\\',"\0"),array('\\\\',"\\\0"),$s);
				//$s = str_replace("\0","\\\0", str_replace('\\','\\\\',$s));
			}
			return  "'".str_replace("'",$this->replaceQuote,$s)."'";
		}
		
		// undo magic quotes for "
		$s = str_replace('\\"','"',$s);
		
		if ($this->replaceQuote == "\\'")  // ' already quoted, no need to change anything
			return "'$s'";
		else {// change \' to '' for sybase/mssql
			$s = str_replace('\\\\','\\',$s);
			return "'".str_replace("\\'",$this->replaceQuote,$s)."'";
		}
	}
	
	
	/**
	* Will select the supplied $page number from a recordset, given that it is paginated in pages of 
	* $nrows rows per page. It also saves two boolean values saying if the given page is the first 
	* and/or last one of the recordset. Added by Iván Oliva to provide recordset pagination.
	*
	* See readme.htm#ex8 for an example of usage.
	*
	* @param sql
	* @param nrows		is the number of rows per page to get
	* @param page		is the page number to get (1-based)
	* @param [inputarr]	array of bind variables
	* @param [secs2cache]		is a private parameter only used by jlim
	* @return		the recordset ($rs->databaseType == 'array')
	*
	* NOTE: phpLens uses a different algorithm and does not use PageExecute().
	*
	*/
	function &PageExecute($sql, $nrows, $page, $inputarr=false, $secs2cache=0) 
	{
		global $ADODB_INCLUDED_LIB;
		if (empty($ADODB_INCLUDED_LIB)) include(ADODB_DIR.'/adodb-lib.inc.php');
		if ($this->pageExecuteCountRows) $rs =& _adodb_pageexecute_all_rows($this, $sql, $nrows, $page, $inputarr, $secs2cache);
		else $rs =& _adodb_pageexecute_no_last_page($this, $sql, $nrows, $page, $inputarr, $secs2cache);
		return $rs;
	}
	
		
	/**
	* Will select the supplied $page number from a recordset, given that it is paginated in pages of 
	* $nrows rows per page. It also saves two boolean values saying if the given page is the first 
	* and/or last one of the recordset. Added by Iván Oliva to provide recordset pagination.
	*
	* @param secs2cache	seconds to cache data, set to 0 to force query
	* @param sql
	* @param nrows		is the number of rows per page to get
	* @param page		is the page number to get (1-based)
	* @param [inputarr]	array of bind variables
	* @return		the recordset ($rs->databaseType == 'array')
	*/
	function &CachePageExecute($secs2cache, $sql, $nrows, $page,$inputarr=false) 
	{
		/*switch($this->dataProvider) {
		case 'postgres':
		case 'mysql': 
			break;
		default: $secs2cache = 0; break;
		}*/
		$rs =& $this->PageExecute($sql,$nrows,$page,$inputarr,$secs2cache);
		return $rs;
	}
} // end class ADOConnection
	
	
	
	//==============================================================================================	
	// CLASS ADOFetchObj
	//==============================================================================================	
		
	/**
	* Internal placeholder for record objects. Used by ADORecordSet->FetchObj().
	*/
	class ADOFetchObj {
	};
	
	//==============================================================================================	
	// CLASS ADORecordSet_empty
	//==============================================================================================	
	
	/**
	* Lightweight recordset when there are no records to be returned
	*/
	class ADORecordSet_empty
	{
		var $dataProvider = 'empty';
		var $databaseType = false;
		var $EOF = true;
		var $_numOfRows = 0;
		var $fields = false;
		var $connection = false;
		function RowCount() {return 0;}
		function RecordCount() {return 0;}
		function PO_RecordCount(){return 0;}
		function Close(){return true;}
		function FetchRow() {return false;}
		function FieldCount(){ return 0;}
		function Init() {}
	}
	
	//==============================================================================================	
	// DATE AND TIME FUNCTIONS
	//==============================================================================================	
	if (!defined('ADODB_DATE_VERSION')) include(ADODB_DIR.'/adodb-time.inc.php');
	
	//==============================================================================================	
	// CLASS ADORecordSet
	//==============================================================================================	
	if (PHP_VERSION < 5) include_once(ADODB_DIR.'/adodb-php4.inc.php');
	else include_once(ADODB_DIR.'/adodb-iterator.inc.php');
   /**
	 * RecordSet class that represents the dataset returned by the database.
	 * To keep memory overhead low, this class holds only the current row in memory.
	 * No prefetching of data is done, so the RecordCount() can return -1 ( which
	 * means recordcount not known).
	 */
	class ADORecordSet extends ADODB_BASE_RS {
	/*
	 * public variables	
	 */
	var $dataProvider = "native";
	var $fields = false; 	/// holds the current row data
	var $blobSize = 100; 	/// any varchar/char field this size or greater is treated as a blob
							/// in other words, we use a text area for editing.
	var $canSeek = false; 	/// indicates that seek is supported
	var $sql; 				/// sql text
	var $EOF = false;		/// Indicates that the current record position is after the last record in a Recordset object. 
	
	var $emptyTimeStamp = ' '; /// what to display when $time==0
	var $emptyDate = ' '; /// what to display when $time==0
	var $debug = false;
	var $timeCreated=0; 	/// datetime in Unix format rs created -- for cached recordsets
	var $bind = false; 		/// used by Fields() to hold array - should be private?
	var $fetchMode;			/// default fetch mode
	var $connection = false; /// the parent connection
	/*
	 *	private variables	
	 */
	var $_numOfRows = -1;	/** number of rows, or -1 */
	var $_numOfFields = -1;	/** number of fields in recordset */
	var $_queryID = -1;		/** This variable keeps the result link identifier.	*/
	var $_currentRow = -1;	/** This variable keeps the current row in the Recordset.	*/
	var $_closed = false; 	/** has recordset been closed */
	var $_inited = false; 	/** Init() should only be called once */
	var $_obj; 				/** Used by FetchObj */
	var $_names;			/** Used by FetchObj */
	
	var $_currentPage = -1;	/** Added by Iván Oliva to implement recordset pagination */
	var $_atFirstPage = false;	/** Added by Iván Oliva to implement recordset pagination */
	var $_atLastPage = false;	/** Added by Iván Oliva to implement recordset pagination */
	var $_lastPageNo = -1; 
	var $_maxRecordCount = 0;
	var $datetime = false;
	
	/**
	 * Constructor
	 *
	 * @param queryID  	this is the queryID returned by ADOConnection->_query()
	 *
	 */
	function ADORecordSet($queryID) 
	{
		$this->_queryID = $queryID;
	}
	
	
	
	function Init()
	{
		if ($this->_inited) return;
		$this->_inited = true;
		if ($this->_queryID) @$this->_initrs();
		else {
			$this->_numOfRows = 0;
			$this->_numOfFields = 0;
		}
		if ($this->_numOfRows != 0 && $this->_numOfFields && $this->_currentRow == -1) {
			
			$this->_currentRow = 0;
			if ($this->EOF = ($this->_fetch() === false)) {
				$this->_numOfRows = 0; // _numOfRows could be -1
			}
		} else {
			$this->EOF = true;
		}
	}
	
	
	/**
	 * Generate a SELECT tag string from a recordset, and return the string.
	 * If the recordset has 2 cols, we treat the 1st col as the containing 
	 * the text to display to the user, and 2nd col as the return value. Default
	 * strings are compared with the FIRST column.
	 *
	 * @param name  		name of SELECT tag
	 * @param [defstr]		the value to hilite. Use an array for multiple hilites for listbox.
	 * @param [blank1stItem]	true to leave the 1st item in list empty
	 * @param [multiple]		true for listbox, false for popup
	 * @param [size]		#rows to show for listbox. not used by popup
	 * @param [selectAttr]		additional attributes to defined for SELECT tag.
	 *				useful for holding javascript onChange='...' handlers.
	 & @param [compareFields0]	when we have 2 cols in recordset, we compare the defstr with 
	 *				column 0 (1st col) if this is true. This is not documented.
	 *
	 * @return HTML
	 *
	 * changes by glen.davies@cce.ac.nz to support multiple hilited items
	 */
	function GetMenu($name,$defstr='',$blank1stItem=true,$multiple=false,
			$size=0, $selectAttr='',$compareFields0=true)
	{
		global $ADODB_INCLUDED_LIB;
		if (empty($ADODB_INCLUDED_LIB)) include(ADODB_DIR.'/adodb-lib.inc.php');
		return _adodb_getmenu($this, $name,$defstr,$blank1stItem,$multiple,
			$size, $selectAttr,$compareFields0);
	}
	
	
	/**
	 * Generate a SELECT tag string from a recordset, and return the string.
	 * If the recordset has 2 cols, we treat the 1st col as the containing 
	 * the text to display to the user, and 2nd col as the return value. Default
	 * strings are compared with the SECOND column.
	 *
	 */
	function GetMenu2($name,$defstr='',$blank1stItem=true,$multiple=false,$size=0, $selectAttr='')	
	{
		return $this->GetMenu($name,$defstr,$blank1stItem,$multiple,
			$size, $selectAttr,false);
	}
	
	/*
		Grouped Menu
	*/
	function GetMenu3($name,$defstr='',$blank1stItem=true,$multiple=false,
			$size=0, $selectAttr='')
	{
		global $ADODB_INCLUDED_LIB;
		if (empty($ADODB_INCLUDED_LIB)) include(ADODB_DIR.'/adodb-lib.inc.php');
		return _adodb_getmenu_gp($this, $name,$defstr,$blank1stItem,$multiple,
			$size, $selectAttr,false);
	}
	/**
	 * return recordset as a 2-dimensional array.
	 *
	 * @param [nRows]  is the number of rows to return. -1 means every row.
	 *
	 * @return an array indexed by the rows (0-based) from the recordset
	 */
	function &GetArray($nRows = -1) 
	{
	global $ADODB_EXTENSION; if ($ADODB_EXTENSION) {
		$results = adodb_getall($this,$nRows);
		return $results;
	}
		$results = array();
		$cnt = 0;
		while (!$this->EOF && $nRows != $cnt) {
			$results[] = $this->fields;
			$this->MoveNext();
			$cnt++;
		}
		return $results;
	}
	
	function &GetAll($nRows = -1)
	{
		$arr =& $this->GetArray($nRows);
		return $arr;
	}
	
	/*
	* Some databases allow multiple recordsets to be returned. This function
	* will return true if there is a next recordset, or false if no more.
	*/
	function NextRecordSet()
	{
		return false;
	}
	
	/**
	 * return recordset as a 2-dimensional array. 
	 * Helper function for ADOConnection->SelectLimit()
	 *
	 * @param offset	is the row to start calculations from (1-based)
	 * @param [nrows]	is the number of rows to return
	 *
	 * @return an array indexed by the rows (0-based) from the recordset
	 */
	function &GetArrayLimit($nrows,$offset=-1) 
	{	
		if ($offset <= 0) {
			$arr =& $this->GetArray($nrows);
			return $arr;
		} 
		
		$this->Move($offset);
		
		$results = array();
		$cnt = 0;
		while (!$this->EOF && $nrows != $cnt) {
			$results[$cnt++] = $this->fields;
			$this->MoveNext();
		}
		
		return $results;
	}
	
	
	/**
	 * Synonym for GetArray() for compatibility with ADO.
	 *
	 * @param [nRows]  is the number of rows to return. -1 means every row.
	 *
	 * @return an array indexed by the rows (0-based) from the recordset
	 */
	function &GetRows($nRows = -1) 
	{
		$arr =& $this->GetArray($nRows);
		return $arr;
	}
	
	/**
	 * return whole recordset as a 2-dimensional associative array if there are more than 2 columns. 
	 * The first column is treated as the key and is not included in the array. 
	 * If there is only 2 columns, it will return a 1 dimensional array of key-value pairs unless
	 * $force_array == true.
	 *
	 * @param [force_array] has only meaning if we have 2 data columns. If false, a 1 dimensional
	 * 	array is returned, otherwise a 2 dimensional array is returned. If this sounds confusing,
	 * 	read the source.
	 *
	 * @param [first2cols] means if there are more than 2 cols, ignore the remaining cols and 
	 * instead of returning array[col0] => array(remaining cols), return array[col0] => col1
	 *
	 * @return an associative array indexed by the first column of the array, 
	 * 	or false if the  data has less than 2 cols.
	 */
	function &GetAssoc($force_array = false, $first2cols = false) 
	{
	global $ADODB_EXTENSION;
	
		$cols = $this->_numOfFields;
		if ($cols < 2) {
			$false = false;
			return $false;
		}
		$numIndex = isset($this->fields[0]);
		$results = array();
		
		if (!$first2cols && ($cols > 2 || $force_array)) {
			if ($ADODB_EXTENSION) {
				if ($numIndex) {
					while (!$this->EOF) {
						$results[trim($this->fields[0])] = array_slice($this->fields, 1);
						adodb_movenext($this);
					}
				} else {
					while (!$this->EOF) {
					// Fix for array_slice re-numbering numeric associative keys
						$keys = array_slice(array_keys($this->fields), 1);
						$sliced_array = array();
						foreach($keys as $key) {
							$sliced_array[$key] = $this->fields[$key];
						}
						
						$results[trim(reset($this->fields))] = $sliced_array;
						adodb_movenext($this);
					}
				}
			} else {
				if ($numIndex) {
					while (!$this->EOF) {
						$results[trim($this->fields[0])] = array_slice($this->fields, 1);
						$this->MoveNext();
					}
				} else {
					while (!$this->EOF) {
					// Fix for array_slice re-numbering numeric associative keys
						$keys = array_slice(array_keys($this->fields), 1);
						$sliced_array = array();
						foreach($keys as $key) {
							$sliced_array[$key] = $this->fields[$key];
						}
						
						$results[trim(reset($this->fields))] = $sliced_array;
						$this->MoveNext();
					}
				}
			}
		} else {
			if ($ADODB_EXTENSION) {
				// return scalar values
				if ($numIndex) {
					while (!$this->EOF) {
					// some bug in mssql PHP 4.02 -- doesn't handle references properly so we FORCE creating a new string
						$results[trim(($this->fields[0]))] = $this->fields[1];
						adodb_movenext($this);
					}
				} else {
					while (!$this->EOF) {
					// some bug in mssql PHP 4.02 -- doesn't handle references properly so we FORCE creating a new string
						$v1 = trim(reset($this->fields));
						$v2 = ''.next($this->fields); 
						$results[$v1] = $v2;
						adodb_movenext($this);
					}
				}
			} else {
				if ($numIndex) {
					while (!$this->EOF) {
					// some bug in mssql PHP 4.02 -- doesn't handle references properly so we FORCE creating a new string
						$results[trim(($this->fields[0]))] = $this->fields[1];
						$this->MoveNext();
					}
				} else {
					while (!$this->EOF) {
					// some bug in mssql PHP 4.02 -- doesn't handle references properly so we FORCE creating a new string
						$v1 = trim(reset($this->fields));
						$v2 = ''.next($this->fields); 
						$results[$v1] = $v2;
						$this->MoveNext();
					}
				}
			}
		}
		
		$ref =& $results; # workaround accelerator incompat with PHP 4.4 :(
		return $ref; 
	}
	
	
	/**
	 *
	 * @param v  	is the character timestamp in YYYY-MM-DD hh:mm:ss format
	 * @param fmt 	is the format to apply to it, using date()
	 *
	 * @return a timestamp formated as user desires
	 */
	function UserTimeStamp($v,$fmt='Y-m-d H:i:s')
	{
		if (is_numeric($v) && strlen($v)<14) return adodb_date($fmt,$v);
		$tt = $this->UnixTimeStamp($v);
		// $tt == -1 if pre TIMESTAMP_FIRST_YEAR
		if (($tt === false || $tt == -1) && $v != false) return $v;
		if ($tt === 0) return $this->emptyTimeStamp;
		return adodb_date($fmt,$tt);
	}
	
	
	/**
	 * @param v  	is the character date in YYYY-MM-DD format, returned by database
	 * @param fmt 	is the format to apply to it, using date()
	 *
	 * @return a date formated as user desires
	 */
	function UserDate($v,$fmt='Y-m-d')
	{
		$tt = $this->UnixDate($v);
		// $tt == -1 if pre TIMESTAMP_FIRST_YEAR
		if (($tt === false || $tt == -1) && $v != false) return $v;
		else if ($tt == 0) return $this->emptyDate;
		else if ($tt == -1) { // pre-TIMESTAMP_FIRST_YEAR
		}
		return adodb_date($fmt,$tt);
	}
	
	
	/**
	 * @param $v is a date string in YYYY-MM-DD format
	 *
	 * @return date in unix timestamp format, or 0 if before TIMESTAMP_FIRST_YEAR, or false if invalid date format
	 */
	function UnixDate($v)
	{
		return ADOConnection::UnixDate($v);
	}
	
	/**
	 * @param $v is a timestamp string in YYYY-MM-DD HH-NN-SS format
	 *
	 * @return date in unix timestamp format, or 0 if before TIMESTAMP_FIRST_YEAR, or false if invalid date format
	 */
	function UnixTimeStamp($v)
	{
		return ADOConnection::UnixTimeStamp($v);
	}
	
	
	/**
	* PEAR DB Compat - do not use internally
	*/
	function Free()
	{
		return $this->Close();
	}
	
	
	/**
	* PEAR DB compat, number of rows
	*/
	function NumRows()
	{
		return $this->_numOfRows;
	}
	
	
	/**
	* PEAR DB compat, number of cols
	*/
	function NumCols()
	{
		return $this->_numOfFields;
	}
	
	/**
	* Fetch a row, returning false if no more rows. 
	* This is PEAR DB compat mode.
	*
	* @return false or array containing the current record
	*/
	function &FetchRow()
	{
		if ($this->EOF) {
			$false = false;
			return $false;
		}
		$arr = $this->fields;
		$this->_currentRow++;
		if (!$this->_fetch()) $this->EOF = true;
		return $arr;
	}
	
	
	/**
	* Fetch a row, returning PEAR_Error if no more rows. 
	* This is PEAR DB compat mode.
	*
	* @return DB_OK or error object
	*/
	function FetchInto(&$arr)
	{
		if ($this->EOF) return (defined('PEAR_ERROR_RETURN')) ? new PEAR_Error('EOF',-1): false;
		$arr = $this->fields;
		$this->MoveNext();
		return 1; // DB_OK
	}
	
	
	/**
	 * Move to the first row in the recordset. Many databases do NOT support this.
	 *
	 * @return true or false
	 */
	function MoveFirst() 
	{
		if ($this->_currentRow == 0) return true;
		return $this->Move(0);			
	}			
	
	/**
	 * Move to the last row in the recordset. 
	 *
	 * @return true or false
	 */
	function MoveLast() 
	{
		if ($this->_numOfRows >= 0) return $this->Move($this->_numOfRows-1);
		if ($this->EOF) return false;
		while (!$this->EOF) {
			$f = $this->fields;
			$this->MoveNext();
		}
		$this->fields = $f;
		$this->EOF = false;
		return true;
	}
	
	
	/**
	 * Move to next record in the recordset.
	 *
	 * @return true if there still rows available, or false if there are no more rows (EOF).
	 */
	function MoveNext() 
	{
		if (!$this->EOF) {
			$this->_currentRow++;
			if ($this->_fetch()) return true;
		}
		$this->EOF = true;
		/* -- tested error handling when scrolling cursor -- seems useless.
		$conn = $this->connection;
		if ($conn && $conn->raiseErrorFn && ($errno = $conn->ErrorNo())) {
			$fn = $conn->raiseErrorFn;
			$fn($conn->databaseType,'MOVENEXT',$errno,$conn->ErrorMsg().' ('.$this->sql.')',$conn->host,$conn->database);
		}
		*/
		return false;
	}
	
	
	/**
	 * Random access to a specific row in the recordset. Some databases do not support
	 * access to previous rows in the databases (no scrolling backwards).
	 *
	 * @param rowNumber is the row to move to (0-based)
	 *
	 * @return true if there still rows available, or false if there are no more rows (EOF).
	 */
	function Move($rowNumber = 0) 
	{
		$this->EOF = false;
		if ($rowNumber == $this->_currentRow) return true;
		if ($rowNumber >= $this->_numOfRows)
	   		if ($this->_numOfRows != -1) $rowNumber = $this->_numOfRows-2;
  				
		if ($this->canSeek) { 
	
			if ($this->_seek($rowNumber)) {
				$this->_currentRow = $rowNumber;
				if ($this->_fetch()) {
					return true;
				}
			} else {
				$this->EOF = true;
				return false;
			}
		} else {
			if ($rowNumber < $this->_currentRow) return false;
			global $ADODB_EXTENSION;
			if ($ADODB_EXTENSION) {
				while (!$this->EOF && $this->_currentRow < $rowNumber) {
					adodb_movenext($this);
				}
			} else {
			
				while (! $this->EOF && $this->_currentRow < $rowNumber) {
					$this->_currentRow++;
					
					if (!$this->_fetch()) $this->EOF = true;
				}
			}
			return !($this->EOF);
		}
		
		$this->fields = false;	
		$this->EOF = true;
		return false;
	}
	
		
	/**
	 * Get the value of a field in the current row by column name.
	 * Will not work if ADODB_FETCH_MODE is set to ADODB_FETCH_NUM.
	 * 
	 * @param colname  is the field to access
	 *
	 * @return the value of $colname column
	 */
	function Fields($colname)
	{
		return $this->fields[$colname];
	}
	
	function GetAssocKeys($upper=true)
	{
		$this->bind = array();
		for ($i=0; $i < $this->_numOfFields; $i++) {
			$o = $this->FetchField($i);
			if ($upper === 2) $this->bind[$o->name] = $i;
			else $this->bind[($upper) ? strtoupper($o->name) : strtolower($o->name)] = $i;
		}
	}
	
  /**
   * Use associative array to get fields array for databases that do not support
   * associative arrays. Submitted by Paolo S. Asioli paolo.asioli#libero.it
   *
   * If you don't want uppercase cols, set $ADODB_FETCH_MODE = ADODB_FETCH_ASSOC
   * before you execute your SQL statement, and access $rs->fields['col'] directly.
   *
   * $upper  0 = lowercase, 1 = uppercase, 2 = whatever is returned by FetchField
   */
	function &GetRowAssoc($upper=1)
	{
		$record = array();
	 //	if (!$this->fields) return $record;
		
	   	if (!$this->bind) {
			$this->GetAssocKeys($upper);
		}
		
		foreach($this->bind as $k => $v) {
			$record[$k] = $this->fields[$v];
		}
		return $record;
	}
	
	
	/**
	 * Clean up recordset
	 *
	 * @return true or false
	 */
	function Close() 
	{
		// free connection object - this seems to globally free the object
		// and not merely the reference, so don't do this...
		// $this->connection = false; 
		if (!$this->_closed) {
			$this->_closed = true;
			return $this->_close();		
		} else
			return true;
	}
	
	/**
	 * synonyms RecordCount and RowCount	
	 *
	 * @return the number of rows or -1 if this is not supported
	 */
	function RecordCount() {return $this->_numOfRows;}
	
	
	/*
	* If we are using PageExecute(), this will return the maximum possible rows
	* that can be returned when paging a recordset.
	*/
	function MaxRecordCount()
	{
		return ($this->_maxRecordCount) ? $this->_maxRecordCount : $this->RecordCount();
	}
	
	/**
	 * synonyms RecordCount and RowCount	
	 *
	 * @return the number of rows or -1 if this is not supported
	 */
	function RowCount() {return $this->_numOfRows;} 
	
	 /**
	 * Portable RecordCount. Pablo Roca 
	 *
	 * @return  the number of records from a previous SELECT. All databases support this.
	 *
	 * But aware possible problems in multiuser environments. For better speed the table
	 * must be indexed by the condition. Heavy test this before deploying.
	 */ 
	function PO_RecordCount($table="", $condition="") {
		
		$lnumrows = $this->_numOfRows;
		// the database doesn't support native recordcount, so we do a workaround
		if ($lnumrows == -1 && $this->connection) {
			IF ($table) {
				if ($condition) $condition = " WHERE " . $condition; 
				$resultrows = &$this->connection->Execute("SELECT COUNT(*) FROM $table $condition");
				if ($resultrows) $lnumrows = reset($resultrows->fields);
			}
		}
		return $lnumrows;
	}
	
	
	/**
	 * @return the current row in the recordset. If at EOF, will return the last row. 0-based.
	 */
	function CurrentRow() {return $this->_currentRow;}
	
	/**
	 * synonym for CurrentRow -- for ADO compat
	 *
	 * @return the current row in the recordset. If at EOF, will return the last row. 0-based.
	 */
	function AbsolutePosition() {return $this->_currentRow;}
	
	/**
	 * @return the number of columns in the recordset. Some databases will set this to 0
	 * if no records are returned, others will return the number of columns in the query.
	 */
	function FieldCount() {return $this->_numOfFields;}   
	/**
	 * Get the ADOFieldObject of a specific column.
	 *
	 * @param fieldoffset	is the column position to access(0-based).
	 *
	 * @return the ADOFieldObject for that column, or false.
	 */
	function &FetchField($fieldoffset) 
	{
		// must be defined by child class
	}	
	
	/**
	 * Get the ADOFieldObjects of all columns in an array.
	 *
	 */
	function& FieldTypesArray()
	{
		$arr = array();
		for ($i=0, $max=$this->_numOfFields; $i < $max; $i++) 
			$arr[] = $this->FetchField($i);
		return $arr;
	}
	
	/**
	* Return the fields array of the current row as an object for convenience.
	* The default case is lowercase field names.
	*
	* @return the object with the properties set to the fields of the current row
	*/
	function &FetchObj()
	{
		$o =& $this->FetchObject(false);
		return $o;
	}
	
	/**
	* Return the fields array of the current row as an object for convenience.
	* The default case is uppercase.
	* 
	* @param $isupper to set the object property names to uppercase
	*
	* @return the object with the properties set to the fields of the current row
	*/
	function &FetchObject($isupper=true)
	{
		if (empty($this->_obj)) {
			$this->_obj = new ADOFetchObj();
			$this->_names = array();
			for ($i=0; $i <$this->_numOfFields; $i++) {
				$f = $this->FetchField($i);
				$this->_names[] = $f->name;
			}
		}
		$i = 0;
		if (PHP_VERSION >= 5) $o = clone($this->_obj);
		else $o = $this->_obj;
	
		for ($i=0; $i <$this->_numOfFields; $i++) {
			$name = $this->_names[$i];
			if ($isupper) $n = strtoupper($name);
			else $n = $name;
			
			$o->$n = $this->Fields($name);
		}
		return $o;
	}
	
	/**
	* Return the fields array of the current row as an object for convenience.
	* The default is lower-case field names.
	* 
	* @return the object with the properties set to the fields of the current row,
	* 	or false if EOF
	*
	* Fixed bug reported by tim@orotech.net
	*/
	function &FetchNextObj()
	{
		$o =& $this->FetchNextObject(false);
		return $o;
	}
	
	
	/**
	* Return the fields array of the current row as an object for convenience. 
	* The default is upper case field names.
	* 
	* @param $isupper to set the object property names to uppercase
	*
	* @return the object with the properties set to the fields of the current row,
	* 	or false if EOF
	*
	* Fixed bug reported by tim@orotech.net
	*/
	function &FetchNextObject($isupper=true)
	{
		$o = false;
		if ($this->_numOfRows != 0 && !$this->EOF) {
			$o = $this->FetchObject($isupper);	
			$this->_currentRow++;
			if ($this->_fetch()) return $o;
		}
		$this->EOF = true;
		return $o;
	}
	
	/**
	 * Get the metatype of the column. This is used for formatting. This is because
	 * many databases use different names for the same type, so we transform the original
	 * type to our standardised version which uses 1 character codes:
	 *
	 * @param t  is the type passed in. Normally is ADOFieldObject->type.
	 * @param len is the maximum length of that field. This is because we treat character
	 * 	fields bigger than a certain size as a 'B' (blob).
	 * @param fieldobj is the field object returned by the database driver. Can hold
	 *	additional info (eg. primary_key for mysql).
	 * 
	 * @return the general type of the data: 
	 *	C for character < 250 chars
	 *	X for teXt (>= 250 chars)
	 *	B for Binary
	 * 	N for numeric or floating point
	 *	D for date
	 *	T for timestamp
	 * 	L for logical/Boolean
	 *	I for integer
	 *	R for autoincrement counter/integer
	 * 
	 *
	*/
	function MetaType($t,$len=-1,$fieldobj=false)
	{
		if (is_object($t)) {
			$fieldobj = $t;
			$t = $fieldobj->type;
			$len = $fieldobj->max_length;
		}
	// changed in 2.32 to hashing instead of switch stmt for speed...
	static $typeMap = array(
		'VARCHAR' => 'C',
		'VARCHAR2' => 'C',
		'CHAR' => 'C',
		'C' => 'C',
		'STRING' => 'C',
		'NCHAR' => 'C',
		'NVARCHAR' => 'C',
		'VARYING' => 'C',
		'BPCHAR' => 'C',
		'CHARACTER' => 'C',
		'INTERVAL' => 'C',  # Postgres
		'MACADDR' => 'C', # postgres
		##
		'LONGCHAR' => 'X',
		'TEXT' => 'X',
		'NTEXT' => 'X',
		'M' => 'X',
		'X' => 'X',
		'CLOB' => 'X',
		'NCLOB' => 'X',
		'LVARCHAR' => 'X',
		##
		'BLOB' => 'B',
		'IMAGE' => 'B',
		'BINARY' => 'B',
		'VARBINARY' => 'B',
		'LONGBINARY' => 'B',
		'B' => 'B',
		##
		'YEAR' => 'D', // mysql
		'DATE' => 'D',
		'D' => 'D',
		##
		'UNIQUEIDENTIFIER' => 'C', # MS SQL Server
		##
		'TIME' => 'T',
		'TIMESTAMP' => 'T',
		'DATETIME' => 'T',
		'TIMESTAMPTZ' => 'T',
		'T' => 'T',
		'TIMESTAMP WITHOUT TIME ZONE' => 'T', // postgresql
		##
		'BOOL' => 'L',
		'BOOLEAN' => 'L', 
		'BIT' => 'L',
		'L' => 'L',
		##
		'COUNTER' => 'R',
		'R' => 'R',
		'SERIAL' => 'R', // ifx
		'INT IDENTITY' => 'R',
		##
		'INT' => 'I',
		'INT2' => 'I',
		'INT4' => 'I',
		'INT8' => 'I',
		'INTEGER' => 'I',
		'INTEGER UNSIGNED' => 'I',
		'SHORT' => 'I',
		'TINYINT' => 'I',
		'SMALLINT' => 'I',
		'I' => 'I',
		##
		'LONG' => 'N', // interbase is numeric, oci8 is blob
		'BIGINT' => 'N', // this is bigger than PHP 32-bit integers
		'DECIMAL' => 'N',
		'DEC' => 'N',
		'REAL' => 'N',
		'DOUBLE' => 'N',
		'DOUBLE PRECISION' => 'N',
		'SMALLFLOAT' => 'N',
		'FLOAT' => 'N',
		'NUMBER' => 'N',
		'NUM' => 'N',
		'NUMERIC' => 'N',
		'MONEY' => 'N',
		
		## informix 9.2
		'SQLINT' => 'I', 
		'SQLSERIAL' => 'I', 
		'SQLSMINT' => 'I', 
		'SQLSMFLOAT' => 'N', 
		'SQLFLOAT' => 'N', 
		'SQLMONEY' => 'N', 
		'SQLDECIMAL' => 'N', 
		'SQLDATE' => 'D', 
		'SQLVCHAR' => 'C', 
		'SQLCHAR' => 'C', 
		'SQLDTIME' => 'T', 
		'SQLINTERVAL' => 'N', 
		'SQLBYTES' => 'B', 
		'SQLTEXT' => 'X',
		 ## informix 10
		"SQLINT8" => 'I8',
		"SQLSERIAL8" => 'I8',
		"SQLNCHAR" => 'C',
		"SQLNVCHAR" => 'C',
		"SQLLVARCHAR" => 'X',
		"SQLBOOL" => 'L'
		);
		
		$tmap = false;
		$t = strtoupper($t);
		$tmap = (isset($typeMap[$t])) ? $typeMap[$t] : 'N';
		switch ($tmap) {
		case 'C':
		
			// is the char field is too long, return as text field... 
			if ($this->blobSize >= 0) {
				if ($len > $this->blobSize) return 'X';
			} else if ($len > 250) {
				return 'X';
			}
			return 'C';
			
		case 'I':
			if (!empty($fieldobj->primary_key)) return 'R';
			return 'I';
		
		case false:
			return 'N';
			
		case 'B':
			 if (isset($fieldobj->binary)) 
				 return ($fieldobj->binary) ? 'B' : 'X';
			return 'B';
		
		case 'D':
			if (!empty($this->connection) && !empty($this->connection->datetime)) return 'T';
			return 'D';
			
		default: 
			if ($t == 'LONG' && $this->dataProvider == 'oci8') return 'B';
			return $tmap;
		}
	}
	
	
	function _close() {}
	
	/**
	 * set/returns the current recordset page when paginating
	 */
	function AbsolutePage($page=-1)
	{
		if ($page != -1) $this->_currentPage = $page;
		return $this->_currentPage;
	}
	
	/**
	 * set/returns the status of the atFirstPage flag when paginating
	 */
	function AtFirstPage($status=false)
	{
		if ($status != false) $this->_atFirstPage = $status;
		return $this->_atFirstPage;
	}
	
	function LastPageNo($page = false)
	{
		if ($page != false) $this->_lastPageNo = $page;
		return $this->_lastPageNo;
	}
	
	/**
	 * set/returns the status of the atLastPage flag when paginating
	 */
	function AtLastPage($status=false)
	{
		if ($status != false) $this->_atLastPage = $status;
		return $this->_atLastPage;
	}
	
} // end class ADORecordSet
	
	//==============================================================================================	
	// CLASS ADORecordSet_array
	//==============================================================================================	
	
	/**
	 * This class encapsulates the concept of a recordset created in memory
	 * as an array. This is useful for the creation of cached recordsets.
	 * 
	 * Note that the constructor is different from the standard ADORecordSet
	 */
	
	class ADORecordSet_array extends ADORecordSet
	{
		var $databaseType = 'array';
		var $_array; 	// holds the 2-dimensional data array
		var $_types;	// the array of types of each column (C B I L M)
		var $_colnames;	// names of each column in array
		var $_skiprow1;	// skip 1st row because it holds column names
		var $_fieldobjects; // holds array of field objects
		var $canSeek = true;
		var $affectedrows = false;
		var $insertid = false;
		var $sql = '';
		var $compat = false;
		/**
		 * Constructor
		 *
		 */
		function ADORecordSet_array($fakeid=1)
		{
		global $ADODB_FETCH_MODE,$ADODB_COMPAT_FETCH;
		
			// fetch() on EOF does not delete $this->fields
			$this->compat = !empty($ADODB_COMPAT_FETCH);
			$this->ADORecordSet($fakeid); // fake queryID		
			$this->fetchMode = $ADODB_FETCH_MODE;
		}
		
		function _transpose()
		{
		global $ADODB_INCLUDED_LIB;
			
			if (empty($ADODB_INCLUDED_LIB)) include(ADODB_DIR.'/adodb-lib.inc.php');
			$hdr = true;
			
			adodb_transpose($this->_array, $newarr, $hdr);
			//adodb_pr($newarr);
			
			$this->_skiprow1 = false;
			$this->_array =& $newarr;
			$this->_colnames = $hdr;
			
			adodb_probetypes($newarr,$this->_types);
		
			$this->_fieldobjects = array();
			
			foreach($hdr as $k => $name) {
				$f = new ADOFieldObject();
				$f->name = $name;
				$f->type = $this->_types[$k];
				$f->max_length = -1;
				$this->_fieldobjects[] = $f;
				
			}
			$this->fields = reset($this->_array);
			
			$this->_initrs();
			
		}
		
		/**
		 * Setup the array.
		 *
		 * @param array		is a 2-dimensional array holding the data.
		 *			The first row should hold the column names 
		 *			unless paramter $colnames is used.
		 * @param typearr	holds an array of types. These are the same types 
		 *			used in MetaTypes (C,B,L,I,N).
		 * @param [colnames]	array of column names. If set, then the first row of
		 *			$array should not hold the column names.
		 */
		function InitArray($array,$typearr,$colnames=false)
		{
			$this->_array = $array;
			$this->_types = $typearr;	
			if ($colnames) {
				$this->_skiprow1 = false;
				$this->_colnames = $colnames;
			} else  {
				$this->_skiprow1 = true;
				$this->_colnames = $array[0];
			}
			$this->Init();
		}
		/**
		 * Setup the Array and datatype file objects
		 *
		 * @param array		is a 2-dimensional array holding the data.
		 *			The first row should hold the column names 
		 *			unless paramter $colnames is used.
		 * @param fieldarr	holds an array of ADOFieldObject's.
		 */
		function InitArrayFields(&$array,&$fieldarr)
		{
			$this->_array =& $array;
			$this->_skiprow1= false;
			if ($fieldarr) {
				$this->_fieldobjects =& $fieldarr;
			} 
			$this->Init();
		}
		
		function &GetArray($nRows=-1)
		{
			if ($nRows == -1 && $this->_currentRow <= 0 && !$this->_skiprow1) {
				return $this->_array;
			} else {
				$arr =& ADORecordSet::GetArray($nRows);
				return $arr;
			}
		}
		
		function _initrs()
		{
			$this->_numOfRows =  sizeof($this->_array);
			if ($this->_skiprow1) $this->_numOfRows -= 1;
		
			$this->_numOfFields =(isset($this->_fieldobjects)) ?
				 sizeof($this->_fieldobjects):sizeof($this->_types);
		}
		
		/* Use associative array to get fields array */
		function Fields($colname)
		{
			$mode = isset($this->adodbFetchMode) ? $this->adodbFetchMode : $this->fetchMode;
			
			if ($mode & ADODB_FETCH_ASSOC) {
				if (!isset($this->fields[$colname])) $colname = strtolower($colname);
				return $this->fields[$colname];
			}
			if (!$this->bind) {
				$this->bind = array();
				for ($i=0; $i < $this->_numOfFields; $i++) {
					$o = $this->FetchField($i);
					$this->bind[strtoupper($o->name)] = $i;
				}
			}
			return $this->fields[$this->bind[strtoupper($colname)]];
		}
		
		function &FetchField($fieldOffset = -1) 
		{
			if (isset($this->_fieldobjects)) {
				return $this->_fieldobjects[$fieldOffset];
			}
			$o =  new ADOFieldObject();
			$o->name = $this->_colnames[$fieldOffset];
			$o->type =  $this->_types[$fieldOffset];
			$o->max_length = -1; // length not known
			
			return $o;
		}
			
		function _seek($row)
		{
			if (sizeof($this->_array) && 0 <= $row && $row < $this->_numOfRows) {
				$this->_currentRow = $row;
				if ($this->_skiprow1) $row += 1;
				$this->fields = $this->_array[$row];
				return true;
			}
			return false;
		}
		
		function MoveNext() 
		{
			if (!$this->EOF) {		
				$this->_currentRow++;
				
				$pos = $this->_currentRow;
				
				if ($this->_numOfRows <= $pos) {
					if (!$this->compat) $this->fields = false;
				} else {
					if ($this->_skiprow1) $pos += 1;
					$this->fields = $this->_array[$pos];
					return true;
				}		
				$this->EOF = true;
			}
			
			return false;
		}	
	
		function _fetch()
		{
			$pos = $this->_currentRow;
			
			if ($this->_numOfRows <= $pos) {
				if (!$this->compat) $this->fields = false;
				return false;
			}
			if ($this->_skiprow1) $pos += 1;
			$this->fields = $this->_array[$pos];
			return true;
		}
		
		function _close() 
		{
			return true;	
		}
	
	} // ADORecordSet_array
	//==============================================================================================	
	// HELPER FUNCTIONS
	//==============================================================================================			
	
	/**
	 * Synonym for ADOLoadCode. Private function. Do not use.
	 *
	 * @deprecated
	 */
	function ADOLoadDB($dbType) 
	{ 
		return ADOLoadCode($dbType);
	}
		
	/**
	 * Load the code for a specific database driver. Private function. Do not use.
	 */
	function ADOLoadCode($dbType) 
	{
	global $ADODB_LASTDB;
	
		if (!$dbType) return false;
		$db = strtolower($dbType);
		switch ($db) {
			case 'ado': 
				if (PHP_VERSION >= 5) $db = 'ado5';
				$class = 'ado'; 
				break;
			case 'ifx':
			case 'maxsql': $class = $db = 'mysqlt'; break;
			case 'postgres':
			case 'postgres8':
			case 'pgsql': $class = $db = 'postgres7'; break;
			default:
				$class = $db; break;
		}
		
		$file = ADODB_DIR."/drivers/adodb-".$db.".inc.php";
		@include_once($file);
		$ADODB_LASTDB = $class;
		if (class_exists("ADODB_" . $class)) return $class;
		
		//ADOConnection::outp(adodb_pr(get_declared_classes(),true));
		if (!file_exists($file)) ADOConnection::outp("Missing file: $file");
		else ADOConnection::outp("Syntax error in file: $file");
		return false;
	}
	/**
	 * synonym for ADONewConnection for people like me who cannot remember the correct name
	 */
	function &NewADOConnection($db='')
	{
		$tmp =& ADONewConnection($db);
		return $tmp;
	}
	
	/**
	 * Instantiate a new Connection class for a specific database driver.
	 *
	 * @param [db]  is the database Connection object to create. If undefined,
	 * 	use the last database driver that was loaded by ADOLoadCode().
	 *
	 * @return the freshly created instance of the Connection class.
	 */
	function &ADONewConnection($db='')
	{
	GLOBAL $ADODB_NEWCONNECTION, $ADODB_LASTDB;
		
		if (!defined('ADODB_ASSOC_CASE')) define('ADODB_ASSOC_CASE',2);
		$errorfn = (defined('ADODB_ERROR_HANDLER')) ? ADODB_ERROR_HANDLER : false;
		$false = false;
		if ($at = strpos($db,'://')) {
			$origdsn = $db;
			if (PHP_VERSION < 5) $dsna = @parse_url($db);
			else {
				$fakedsn = 'fake'.substr($db,$at);
				$dsna = @parse_url($fakedsn);
				$dsna['scheme'] = substr($db,0,$at);
			
				if (strncmp($db,'pdo',3) == 0) {
					$sch = explode('_',$dsna['scheme']);
					if (sizeof($sch)>1) {
						$dsna['host'] = isset($dsna['host']) ? rawurldecode($dsna['host']) : '';
						$dsna['host'] = rawurlencode($sch[1].':host='.rawurldecode($dsna['host']));
						$dsna['scheme'] = 'pdo';
					}
				}
			}
			
			if (!$dsna) {
				// special handling of oracle, which might not have host
				$db = str_replace('@/','@adodb-fakehost/',$db);
				$dsna = parse_url($db);
				if (!$dsna) return $false;
				$dsna['host'] = '';
			}
			$db = @$dsna['scheme'];
			if (!$db) return $false;
			$dsna['host'] = isset($dsna['host']) ? rawurldecode($dsna['host']) : '';
			$dsna['user'] = isset($dsna['user']) ? rawurldecode($dsna['user']) : '';
			$dsna['pass'] = isset($dsna['pass']) ? rawurldecode($dsna['pass']) : '';
			$dsna['path'] = isset($dsna['path']) ? rawurldecode(substr($dsna['path'],1)) : ''; # strip off initial /
			
			if (isset($dsna['query'])) {
				$opt1 = explode('&',$dsna['query']);
				foreach($opt1 as $k => $v) {
					$arr = explode('=',$v);
					$opt[$arr[0]] = isset($arr[1]) ? rawurldecode($arr[1]) : 1;
				}
			} else $opt = array();
		}
	/*
	 *  phptype: Database backend used in PHP (mysql, odbc etc.)
	 *  dbsyntax: Database used with regards to SQL syntax etc.
	 *  protocol: Communication protocol to use (tcp, unix etc.)
	 *  hostspec: Host specification (hostname[:port])
	 *  database: Database to use on the DBMS server
	 *  username: User name for login
	 *  password: Password for login
	 */
		if (!empty($ADODB_NEWCONNECTION)) {
			$obj = $ADODB_NEWCONNECTION($db);
		} else {
		
			if (!isset($ADODB_LASTDB)) $ADODB_LASTDB = '';
			if (empty($db)) $db = $ADODB_LASTDB;
			
			if ($db != $ADODB_LASTDB) $db = ADOLoadCode($db);
			
			if (!$db) {
				if (isset($origdsn)) $db = $origdsn;
				if ($errorfn) {
					// raise an error
					$ignore = false;
					$errorfn('ADONewConnection', 'ADONewConnection', -998,
							 "could not load the database driver for '$db'",
							 $db,false,$ignore);
				} else
					 ADOConnection::outp( "ADONewConnection: Unable to load database driver '$db'
",false);
					
				return $false;
			}
			
			$cls = 'ADODB_'.$db;
			if (!class_exists($cls)) {
				adodb_backtrace();
				return $false;
			}
			
			$obj = new $cls();
		}
		
		# constructor should not fail
		if ($obj) {
			if ($errorfn)  $obj->raiseErrorFn = $errorfn;
			if (isset($dsna)) {
				if (isset($dsna['port'])) $obj->port = $dsna['port'];
				foreach($opt as $k => $v) {
					switch(strtolower($k)) {
					case 'new':
										$nconnect = true; $persist = true; break;
					case 'persist':
					case 'persistent': 	$persist = $v; break;
					case 'debug':		$obj->debug = (integer) $v; break;
					#ibase
					case 'role':		$obj->role = $v; break;
					case 'dialect': 	$obj->dialect = (integer) $v; break;
					case 'charset':		$obj->charset = $v; $obj->charSet=$v; break;
					case 'buffers':		$obj->buffers = $v; break;
					case 'fetchmode':   $obj->SetFetchMode($v); break;
					#ado
					case 'charpage':	$obj->charPage = $v; break;
					#mysql, mysqli
					case 'clientflags': $obj->clientFlags = $v; break;
					#mysql, mysqli, postgres
					case 'port': $obj->port = $v; break;
					#mysqli
					case 'socket': $obj->socket = $v; break;
					#oci8
					case 'nls_date_format': $obj->NLS_DATE_FORMAT = $v; break;
					}
				}
				if (empty($persist))
					$ok = $obj->Connect($dsna['host'], $dsna['user'], $dsna['pass'], $dsna['path']);
				else if (empty($nconnect))
					$ok = $obj->PConnect($dsna['host'], $dsna['user'], $dsna['pass'], $dsna['path']);
				else
					$ok = $obj->NConnect($dsna['host'], $dsna['user'], $dsna['pass'], $dsna['path']);
					
				if (!$ok) return $false;
			}
		}
		return $obj;
	}
	
	
	
	// $perf == true means called by NewPerfMonitor(), otherwise for data dictionary
	function _adodb_getdriver($provider,$drivername,$perf=false)
	{
		switch ($provider) {
		case 'odbtp':   if (strncmp('odbtp_',$drivername,6)==0) return substr($drivername,6); 
		case 'odbc' :   if (strncmp('odbc_',$drivername,5)==0) return substr($drivername,5); 
		case 'ado'  :   if (strncmp('ado_',$drivername,4)==0) return substr($drivername,4);
		case 'native':  break;
		default:
			return $provider;
		}
		
		switch($drivername) {
		case 'mysqlt':
		case 'mysqli': 
				$drivername='mysql'; 
				break;
		case 'postgres7':
		case 'postgres8':
				$drivername = 'postgres'; 
				break;	
		case 'firebird15': $drivername = 'firebird'; break;
		case 'oracle': $drivername = 'oci8'; break;
		case 'access': if ($perf) $drivername = ''; break;
		case 'db2'   : break;
		case 'sapdb' : break;
		default:
			$drivername = 'generic';
			break;
		}
		return $drivername;
	}
	
	function &NewPerfMonitor(&$conn)
	{
		$false = false;
		$drivername = _adodb_getdriver($conn->dataProvider,$conn->databaseType,true);
		if (!$drivername || $drivername == 'generic') return $false;
		include_once(ADODB_DIR.'/adodb-perf.inc.php');
		@include_once(ADODB_DIR."/perf/perf-$drivername.inc.php");
		$class = "Perf_$drivername";
		if (!class_exists($class)) return $false;
		$perf = new $class($conn);
		
		return $perf;
	}
	
	function &NewDataDictionary(&$conn,$drivername=false)
	{
		$false = false;
		if (!$drivername) $drivername = _adodb_getdriver($conn->dataProvider,$conn->databaseType);
		include_once(ADODB_DIR.'/adodb-lib.inc.php');
		include_once(ADODB_DIR.'/adodb-datadict.inc.php');
		$path = ADODB_DIR."/datadict/datadict-$drivername.inc.php";
		if (!file_exists($path)) {
			ADOConnection::outp("Dictionary driver '$path' not available");
			return $false;
		}
		include_once($path);
		$class = "ADODB2_$drivername";
		$dict = new $class();
		$dict->dataProvider = $conn->dataProvider;
		$dict->connection = &$conn;
		$dict->upperName = strtoupper($drivername);
		$dict->quote = $conn->nameQuote;
		if (!empty($conn->_connectionID))
			$dict->serverInfo = $conn->ServerInfo();
		
		return $dict;
	}
	
	/*
		Perform a print_r, with pre tags for better formatting.
	*/
	function adodb_pr($var,$as_string=false)
	{
		if ($as_string) ob_start();
		
		if (isset($_SERVER['HTTP_USER_AGENT'])) { 
			echo " \n";print_r($var);echo "
\n";
		} else
			print_r($var);
			
		if ($as_string) {
			$s = ob_get_contents();
			ob_end_clean();
			return $s;
		}
	}
	
	/*
		Perform a stack-crawl and pretty print it.
		
		@param printOrArr  Pass in a boolean to indicate print, or an $exception->trace array (assumes that print is true then).
		@param levels Number of levels to display
	*/
	function adodb_backtrace($printOrArr=true,$levels=9999)
	{
		global $ADODB_INCLUDED_LIB;
		if (empty($ADODB_INCLUDED_LIB)) include(ADODB_DIR.'/adodb-lib.inc.php');
		return _adodb_backtrace($printOrArr,$levels);
	}
}
?>