Index: wp-includes/ID3/module.audio-video.riff.php
===================================================================
--- wp-includes/ID3/module.audio-video.riff.php	(revision 56808)
+++ wp-includes/ID3/module.audio-video.riff.php	(working copy)
@@ -2034,7 +2034,7 @@
 		foreach ($RIFFinfoKeyLookup as $key => $value) {
 			if (isset($RIFFinfoArray[$key])) {
 				foreach ($RIFFinfoArray[$key] as $commentid => $commentdata) {
-					if (!empty($commentdata['data']) && trim($commentdata['data']) != '') {
+					if (!empty($commentdata['data']) && trim($commentdata['data']) !== '') {
 						if (isset($CommentsTargetArray[$value])) {
 							$CommentsTargetArray[$value][] =     trim($commentdata['data']);
 						} else {
Index: wp-includes/IXR/class-IXR-message.php
===================================================================
--- wp-includes/IXR/class-IXR-message.php	(revision 56808)
+++ wp-includes/IXR/class-IXR-message.php	(working copy)
@@ -191,7 +191,7 @@
                 break;
             case 'value':
                 // "If no type is indicated, the type is string."
-                if (trim($this->_currentTagContents) != '') {
+                if (trim($this->_currentTagContents) !== '') {
                     $value = (string)$this->_currentTagContents;
                     $valueFlag = true;
                 }
Index: wp-includes/SimplePie/Misc.php
===================================================================
--- wp-includes/SimplePie/Misc.php	(revision 56808)
+++ wp-includes/SimplePie/Misc.php	(working copy)
@@ -2151,7 +2151,7 @@
 		header('Expires: ' . gmdate('D, d M Y H:i:s', time() + 604800) . ' GMT'); // 7 days
 		?>
 function embed_quicktime(type, bgcolor, width, height, link, placeholder, loop) {
-	if (placeholder != '') {
+	if (placeholder !== '') {
 		document.writeln('<embed type="'+type+'" style="cursor:hand; cursor:pointer;" href="'+link+'" src="'+placeholder+'" width="'+width+'" height="'+height+'" autoplay="false" target="myself" controller="false" loop="'+loop+'" scale="aspect" bgcolor="'+bgcolor+'" pluginspage="http://www.apple.com/quicktime/download/"></embed>');
 	}
 	else {
Index: wp-includes/Text/Diff/Engine/string.php
===================================================================
--- wp-includes/Text/Diff/Engine/string.php	(revision 56808)
+++ wp-includes/Text/Diff/Engine/string.php	(working copy)
@@ -176,7 +176,7 @@
             }
 
             while ($i < $max_i && ($max_j-$j) <= 1) {
-                if ($diff[$i] != '' && substr($diff[$i], 0, 1) != ' ') {
+                if ($diff[$i] !== '' && substr($diff[$i], 0, 1) != ' ') {
                     break;
                 }
                 $array[] = substr($diff[$i++], 2);
@@ -183,7 +183,7 @@
             }
 
             while ($j < $max_j && ($max_i-$i) <= 1) {
-                if ($diff[$j] != '' && substr($diff[$j], 0, 1) != ' ') {
+                if ($diff[$j] !== '' && substr($diff[$j], 0, 1) != ' ') {
                     break;
                 }
                 $array[] = substr($diff[$j++], 2);