diff --git src/wp-includes/IXR/class-IXR-value.php src/wp-includes/IXR/class-IXR-value.php
index 0fd878bcac..2a36e95f2b 100644
--- src/wp-includes/IXR/class-IXR-value.php
+++ src/wp-includes/IXR/class-IXR-value.php
@@ -19,13 +19,13 @@ class IXR_Value {
             $type = $this->calculateType();
         }
         $this->type = $type;
-        if ($type == 'struct') {
+        if ( 'struct' === $type ) {
             // Turn all the values in the array in to new IXR_Value objects
             foreach ($this->data as $key => $value) {
                 $this->data[$key] = new IXR_Value($value);
             }
         }
-        if ($type == 'array') {
+        if ( 'array' === $type ) {
             for ($i = 0, $j = count($this->data); $i < $j; $i++) {
                 $this->data[$i] = new IXR_Value($this->data[$i]);
             }
diff --git src/wp-includes/deprecated.php src/wp-includes/deprecated.php
index 45b4f89a9e..9765ac1567 100644
--- src/wp-includes/deprecated.php
+++ src/wp-includes/deprecated.php
@@ -112,7 +112,7 @@ function the_category_head( $before = '', $after = '' ) {
 	// Grab the first cat in the list.
 	$categories = get_the_category();
 	$currentcat = $categories[0]->category_id;
-	if ( $currentcat != $previouscat ) {
+	if ( $currentcat !== $previouscat ) {
 		echo $before;
 		echo get_the_category_by_ID($currentcat);
 		echo $after;
@@ -149,7 +149,7 @@ function previous_post($format='%', $previous='previous post: ', $title='yes', $
 		return;
 
 	$string = '<a href="'.get_permalink($post->ID).'">'.$previous;
-	if ( 'yes' == $title )
+	if ( 'yes' === $title )
 		$string .= apply_filters('the_title', $post->post_title, $post->ID);
 	$string .= '</a>';
 	$format = str_replace('%', $string, $format);
@@ -248,7 +248,7 @@ function user_can_edit_post($user_id, $post_id, $blog_id = 1) {
 	$post = get_post($post_id);
 	$post_author_data = get_userdata($post->post_author);
 
-	if ( (($user_id == $post_author_data->ID) && !($post->post_status == 'publish' && $author_data->user_level < 2))
+	if ( ( ( $user_id == $post_author_data->ID ) && !( $post->post_status == 'publish' && $author_data->user_level < 2 ) )
 			|| ($author_data->user_level > $post_author_data->user_level)
 			|| ($author_data->user_level >= 10) ) {
 		return true;
@@ -1691,12 +1691,12 @@ function the_content_rss($more_link_text='(more...)', $stripteaser=0, $more_file
 	$content = apply_filters('the_content_rss', $content);
 	if ( $cut && !$encode_html )
 		$encode_html = 2;
-	if ( 1== $encode_html ) {
+	if ( 1 === $encode_html ) {
 		$content = esc_html($content);
 		$cut = 0;
-	} elseif ( 0 == $encode_html ) {
+	} elseif ( 0 === $encode_html ) {
 		$content = make_url_footnote($content);
-	} elseif ( 2 == $encode_html ) {
+	} elseif ( 2 === $encode_html ) {
 		$content = strip_tags($content);
 	}
 	if ( $cut ) {