Changeset 21285

Timestamp:

07/20/2012 04:21:42 AM (13 years ago)

Author:

nacin

Message:

Improve the performance of WP_Object_Cache's _exists() method.

Results showed a performance improvement on one admin screen of 90ms (~2%).

fixes #21320. see #20004.

File:

• trunk/wp-includes/cache.php (modified) (1 diff)

trunk/wp-includes/cache.php

@@ -532 +532 @@
     /**
      * Utility function to determine whether a key exists in the cache.
-     * @access private
-     */
-    protected function _exists($key, $group) {
-        return isset( $this->cache[$group] ) && is_array( $this->cache[$group] ) && array_key_exists( $key, $this->cache[$group] );
+     *
+     * @since 3.4.0
+     *
+     * @access protected
+     */
+    protected function _exists( $key, $group ) {
+        return isset( $this->cache[ $group ] ) && ( isset( $this->cache[ $group ][ $key ] ) || array_key_exists( $key, $this->cache[ $group ] ) );
     }