diff --git a/ext/artists/main.php b/ext/artists/main.php
index 984b12af..0b1d40b7 100644
--- a/ext/artists/main.php
+++ b/ext/artists/main.php
@@ -45,7 +45,7 @@ class Artists extends Extension {
 
 	public function onSearchTermParse(SearchTermParseEvent $event) {
 		$matches = array();
-		if(preg_match("/^author[=|:](.*)$/", $event->term, $matches)) {
+		if(preg_match("/^author[=|:](.*)$/i", $event->term, $matches)) {
 			$char = $matches[1];
 			$event->add_querylet(new Querylet("Author = :author_char", array("author_char"=>$char)));
 		}
diff --git a/ext/comment/main.php b/ext/comment/main.php
index 1c472626..107b2247 100644
--- a/ext/comment/main.php
+++ b/ext/comment/main.php
@@ -262,7 +262,7 @@ class CommentList extends Extension {
 
 	public function onSearchTermParse(SearchTermParseEvent $event) {
 		$matches = array();
-		if(preg_match("/^comments([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)$/", $event->term, $matches)) {
+		if(preg_match("/^comments([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)$/i", $event->term, $matches)) {
 			$cmp = ltrim($matches[1], ":") ?: "=";
 			$comments = $matches[2];
 			$event->add_querylet(new Querylet("images.id IN (SELECT DISTINCT image_id FROM comments GROUP BY image_id HAVING count(image_id) $cmp $comments)"));
diff --git a/ext/favorites/main.php b/ext/favorites/main.php
index 6517377e..21ce0829 100644
--- a/ext/favorites/main.php
+++ b/ext/favorites/main.php
@@ -117,7 +117,7 @@ class Favorites extends Extension {
 
 	public function onSearchTermParse(SearchTermParseEvent $event) {
 		$matches = array();
-		if(preg_match("/^favorites([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)$/", $event->term, $matches)) {
+		if(preg_match("/^favorites([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)$/i", $event->term, $matches)) {
 			$cmp = ltrim($matches[1], ":") ?: "=";
 			$favorites = $matches[2];
 			$event->add_querylet(new Querylet("images.id IN (SELECT id FROM images WHERE favorites $cmp $favorites)"));
diff --git a/ext/index/main.php b/ext/index/main.php
index 9cf5abfc..f7018512 100644
--- a/ext/index/main.php
+++ b/ext/index/main.php
@@ -295,12 +295,12 @@ class Index extends Extension {
 	public function onSearchTermParse(SearchTermParseEvent $event) {
 		$matches = array();
 		// check for tags first as tag based searches are more common.
-		if(preg_match("/^tags([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)$/", $event->term, $matches)) {
+		if(preg_match("/^tags([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)$/i", $event->term, $matches)) {
 			$cmp = ltrim($matches[1], ":") ?: "=";
 			$tags = $matches[2];
 			$event->add_querylet(new Querylet('images.id IN (SELECT DISTINCT image_id FROM image_tags GROUP BY image_id HAVING count(image_id) '.$cmp.' '.$tags.')'));
 		}
-		else if(preg_match("/^ratio([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+):(\d+)$/", $event->term, $matches)) {
+		else if(preg_match("/^ratio([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+):(\d+)$/i", $event->term, $matches)) {
 			$cmp = preg_replace('/^:/', '=', $matches[1]);
 			$args = array("width{$this->stpen}"=>int_escape($matches[2]), "height{$this->stpen}"=>int_escape($matches[3]));
 			$event->add_querylet(new Querylet("width / height $cmp :width{$this->stpen} / :height{$this->stpen}", $args));
@@ -326,28 +326,28 @@ class Index extends Extension {
 		else if(preg_match("/^(source)[=|:](.*)$/i", $event->term, $matches)) {
 			$source = strtolower($matches[2]);
 
-			if(preg_match("/^(any|none)$/", $source)){
+			if(preg_match("/^(any|none)$/i", $source)){
 				$not = ($source == "any" ? "NOT" : "");
 				$event->add_querylet(new Querylet("images.source IS $not NULL"));
 			}else{
 				$event->add_querylet(new Querylet('images.source LIKE :src', array("src"=>"%$source%")));
 			}
 		}
-		else if(preg_match("/^posted([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])([0-9-]*)$/", $event->term, $matches)) {
+		else if(preg_match("/^posted([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])([0-9-]*)$/i", $event->term, $matches)) {
 			$cmp = ltrim($matches[1], ":") ?: "=";
 			$val = $matches[2];
 			$event->add_querylet(new Querylet("images.posted $cmp :posted{$this->stpen}", array("posted{$this->stpen}"=>$val)));
 		}
-		else if(preg_match("/^size([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)x(\d+)$/", $event->term, $matches)) {
+		else if(preg_match("/^size([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)x(\d+)$/i", $event->term, $matches)) {
 			$cmp = ltrim($matches[1], ":") ?: "=";
 			$args = array("width{$this->stpen}"=>int_escape($matches[2]), "height{$this->stpen}"=>int_escape($matches[3]));
 			$event->add_querylet(new Querylet("width $cmp :width{$this->stpen} AND height $cmp :height{$this->stpen}", $args));
 		}
-		else if(preg_match("/^width([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)$/", $event->term, $matches)) {
+		else if(preg_match("/^width([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)$/i", $event->term, $matches)) {
 			$cmp = ltrim($matches[1], ":") ?: "=";
 			$event->add_querylet(new Querylet("width $cmp :width{$this->stpen}", array("width{$this->stpen}"=>int_escape($matches[2]))));
 		}
-		else if(preg_match("/^height([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)$/", $event->term, $matches)) {
+		else if(preg_match("/^height([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)$/i", $event->term, $matches)) {
 			$cmp = ltrim($matches[1], ":") ?: "=";
 			$event->add_querylet(new Querylet("height $cmp :height{$this->stpen}",array("height{$this->stpen}"=>int_escape($matches[2]))));
 		}
diff --git a/ext/notes/main.php b/ext/notes/main.php
index f29a22e9..ac058c45 100644
--- a/ext/notes/main.php
+++ b/ext/notes/main.php
@@ -214,7 +214,7 @@ class Notes extends Extension {
 			$notes = int_escape($matches[1]);
 			$event->add_querylet(new Querylet("images.id IN (SELECT image_id FROM notes WHERE note = $notes)"));
 		}
-		else if(preg_match("/^notes([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)%/", $event->term, $matches)) {
+		else if(preg_match("/^notes([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)%/i", $event->term, $matches)) {
 			$cmp = ltrim($matches[1], ":") ?: "=";
 			$notes = $matches[2];
 			$event->add_querylet(new Querylet("images.id IN (SELECT id FROM images WHERE notes $cmp $notes)"));
diff --git a/ext/numeric_score/main.php b/ext/numeric_score/main.php
index 2da74577..70c18061 100644
--- a/ext/numeric_score/main.php
+++ b/ext/numeric_score/main.php
@@ -217,12 +217,12 @@ class NumericScore extends Extension {
 
 	public function onSearchTermParse(SearchTermParseEvent $event) {
 		$matches = array();
-		if(preg_match("/^score([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(-?\d+)$/", $event->term, $matches)) {
+		if(preg_match("/^score([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(-?\d+)$/i", $event->term, $matches)) {
 			$cmp = ltrim($matches[1], ":") ?: "=";
 			$score = $matches[2];
 			$event->add_querylet(new Querylet("numeric_score $cmp $score"));
 		}
-		if(preg_match("/^upvoted_by[=|:](.*)$/", $event->term, $matches)) {
+		else if(preg_match("/^upvoted_by[=|:](.*)$/i", $event->term, $matches)) {
 			$duser = User::by_name($matches[1]);
 			if(is_null($duser)) {
 				throw new SearchTermParseException(
@@ -232,7 +232,7 @@ class NumericScore extends Extension {
 				"images.id in (SELECT image_id FROM numeric_score_votes WHERE user_id=:ns_user_id AND score=1)",
 				array("ns_user_id"=>$duser->id)));
 		}
-		if(preg_match("/^downvoted_by[=|:](.*)$/", $event->term, $matches)) {
+		else if(preg_match("/^downvoted_by[=|:](.*)$/i", $event->term, $matches)) {
 			$duser = User::by_name($matches[1]);
 			if(is_null($duser)) {
 				throw new SearchTermParseException(
@@ -242,13 +242,13 @@ class NumericScore extends Extension {
 				"images.id in (SELECT image_id FROM numeric_score_votes WHERE user_id=:ns_user_id AND score=-1)",
 				array("ns_user_id"=>$duser->id)));
 		}
-		if(preg_match("/^upvoted_by_id[=|:](\d+)$/", $event->term, $matches)) {
+		else if(preg_match("/^upvoted_by_id[=|:](\d+)$/i", $event->term, $matches)) {
 			$iid = int_escape($matches[1]);
 			$event->add_querylet(new Querylet(
 				"images.id in (SELECT image_id FROM numeric_score_votes WHERE user_id=:ns_user_id AND score=1)",
 				array("ns_user_id"=>$iid)));
 		}
-		if(preg_match("/^downvoted_by_id[=|:](\d+)$/", $event->term, $matches)) {
+		else if(preg_match("/^downvoted_by_id[=|:](\d+)$/i", $event->term, $matches)) {
 			$iid = int_escape($matches[1]);
 			$event->add_querylet(new Querylet(
 				"images.id in (SELECT image_id FROM numeric_score_votes WHERE user_id=:ns_user_id AND score=-1)",
diff --git a/ext/pools/main.php b/ext/pools/main.php
index 6bcd8760..3af892b7 100644
--- a/ext/pools/main.php
+++ b/ext/pools/main.php
@@ -295,7 +295,7 @@ class Pools extends Extension {
 
 	public function onSearchTermParse(SearchTermParseEvent $event) {
 		$matches = array();
-		if(preg_match("/^pool[=|:]([0-9]+|any|none)$/", $event->term, $matches)) {
+		if(preg_match("/^pool[=|:]([0-9]+|any|none)$/i", $event->term, $matches)) {
 			$poolID = $matches[1];
 
 			if(preg_match("/^(any|none)$/", $poolID)){
@@ -305,7 +305,7 @@ class Pools extends Extension {
 				$event->add_querylet(new Querylet("images.id IN (SELECT DISTINCT image_id FROM pool_images WHERE pool_id = $poolID)"));
 			}
 		}
-		else if(preg_match("/^pool_by_name[=|:](.*)$/", $event->term, $matches)) {
+		else if(preg_match("/^pool_by_name[=|:](.*)$/i", $event->term, $matches)) {
 			$poolTitle = str_replace("_", " ", $matches[1]);
 
 			$pool = $this->get_single_pool_from_title($poolTitle);