Ticket #21607: post.php.patch

wp-admin/includes/post.php

@@ -488 +488 @@
  * @param string $title Post title
  * @param string $content Optional post content
  * @param string $date Optional post date
- * @return int Post ID if post exists, 0 otherwise.
+ * @return int Post ID if post exists, null otherwise.
  */
 function post_exists($title, $content = '', $date = '') {
         global $wpdb;
@@ -518 +518 @@
         if ( !empty ( $args ) )
                 return $wpdb->get_var( $wpdb->prepare($query, $args) );
 
-        return 0;
+        return null;
 }
 
 /**