diff --git a/core/database.class.php b/core/database.class.php
index a22c838c..eb00e1ab 100644
--- a/core/database.class.php
+++ b/core/database.class.php
@@ -229,7 +229,7 @@ class MemcacheCache implements CacheEngine {
 class APCCache implements CacheEngine {
 	var $hits=0, $misses=0;
 
-	public function __construct() {}
+	public function __construct($args) {}
 
 	public function get($key) {
 		assert(!is_null($key));
diff --git a/core/util.inc.php b/core/util.inc.php
index 8eae8fbb..b2dfa436 100644
--- a/core/util.inc.php
+++ b/core/util.inc.php
@@ -867,6 +867,9 @@ function transload($url, $mfile) {
 		fwrite($fp, $data);
 		fclose($fp);
 
+		// Scrutinizer-ci complains that $http_response_header not defined.
+		// However, it is auto defined by PHP.
+		// See: http://us2.php.net/manual/en/reserved.variables.httpresponseheader.php
 		$headers = http_parse_headers(implode("\n", $http_response_header));
 
 		return $headers;
diff --git a/ext/artists/main.php b/ext/artists/main.php
index 7aea77ad..f74022d5 100644
--- a/ext/artists/main.php
+++ b/ext/artists/main.php
@@ -805,7 +805,7 @@ class Artists extends Extension {
         $urls = $_POST["urls"];
         $userID = $user->id;
 
-        $artistID = "";
+        //$artistID = "";
 
         //// WE CHECK IF THE ARTIST ALREADY EXISTS ON DATABASE; IF NOT WE CREATE
         if(!$this->artist_exists($name))
diff --git a/ext/blotter/theme.php b/ext/blotter/theme.php
index 872f550a..23395bc5 100644
--- a/ext/blotter/theme.php
+++ b/ext/blotter/theme.php
@@ -106,7 +106,7 @@ class BlotterTheme extends Themelet {
 			// Reset variables:
 			$i_open = "";
 			$i_close = "";
-			$id = $entries[$i]['id'];
+			//$id = $entries[$i]['id'];
 			$messy_date = $entries[$i]['entry_date'];
 			$clean_date = date("y/m/d", strtotime($messy_date));
 			$entry_text = $entries[$i]['entry_text'];
diff --git a/ext/chatbox/js/yshout.js b/ext/chatbox/js/yshout.js
index b60f189f..be4fb4b9 100644
--- a/ext/chatbox/js/yshout.js
+++ b/ext/chatbox/js/yshout.js
@@ -380,7 +380,7 @@ YShout.prototype = {
 		}
 
 		for (var j = 0; j < same.length; j++) {
-			$('#' + same[j].id).fadeTo(this.animSpeed, .8).fadeTo(this.animSpeed, 1);
+			$('#' + same[j].id).fadeTo(this.animSpeed, 0.8).fadeTo(this.animSpeed, 1);
 		}
 	},
 	
diff --git a/ext/pools/main.php b/ext/pools/main.php
index e8637e1b..965fb98e 100644
--- a/ext/pools/main.php
+++ b/ext/pools/main.php
@@ -806,6 +806,7 @@ class Pools extends Extension {
 			$images = explode(" ", $images);
 			$poolID = $entry['pool_id'];
 			$imageArray = "";
+			$newAction = -1;
 
 			if($entry['action'] == 0) {
 				// READ ENTRIES
@@ -826,6 +827,10 @@ class Pools extends Extension {
 					$imageArray .= " ".$imageID;
 					$newAction = 0;
 				}
+			} else {
+				// FIXME: should this throw an exception instead?
+				log_error("pools", "Invalid history action.");
+				continue; // go on to the next one.
 			}
 
 			$count = $database->get_one("SELECT COUNT(*) FROM pool_images WHERE pool_id=:pid", array("pid"=>$poolID));
diff --git a/ext/tag_list/main.php b/ext/tag_list/main.php
index bb4c39fb..3677c98a 100644
--- a/ext/tag_list/main.php
+++ b/ext/tag_list/main.php
@@ -48,7 +48,7 @@ class TagList extends Extension {
 		else if($event->page_matches("api/internal/tag_list/complete")) {
 			if(!isset($_GET["s"])) return;
 
-			$limit = 0;
+			//$limit = 0;
 			$limitSQL = "";
 			$SQLarr = array("search"=>$_GET["s"]."%");
 			if(isset($_GET["limit"]) && $_GET["limit"] !== 0){
@@ -321,7 +321,7 @@ class TagList extends Extension {
 	private function build_tag_list() {
 		global $database;
 
-		$tags_min = $this->get_tags_min();
+		//$tags_min = $this->get_tags_min();
 		$tag_data = $database->get_all("SELECT tag,count FROM tags ORDER BY count DESC, tag ASC LIMIT 9");
 
 		$html = "<table>";