Ticket #24906: 24906.3.diff

src/wp-includes/post-formats.php

@@ -32 +32 @@
 }
 
 /**
- * Check if a post has a particular format
+ * Check if a post has any of the given formats, or any format.
  *
  * @since 3.1.0
  *
  * @uses has_term()
  *
- * @param string|array $format The format or formats to check.
- * @param object|int   $post   The post to check. If not supplied, defaults to the current post if used in the loop.
- * @return bool True if the post has the format, false otherwise.
+ * @param string|array $format Optional. The format or formats to check.
+ * @param object|int $post Optional. The post to check. If not supplied, defaults to the current post if used in the loop.
+ * @return bool True if the post has any of the given formats (or any format, if no format specified), false otherwise.
  */
-function has_post_format( $format, $post = null ) {
-        if ( ! is_array( $format ) )
-                $format = array( $format );
+function has_post_format( $format = array(), $post = null ) {
+        $prefixed = array();
 
-        $prefixed = array();
-        foreach( $format as $single ) {
-                $prefixed[] = 'post-format-' . sanitize_key( $single );
+        if ( $format ) {
+                foreach ( (array) $format as $single ) {
+                        $prefixed[] = 'post-format-' . sanitize_key( $single );
+                }
         }
 
         return has_term( $prefixed, 'post_format', $post );