Ticket #10493: closures.3.diff

wp-includes/plugin.php

@@ -737 +737 @@
         if ( is_string($function) )
                 return $function;
 
-        $function = (array) $function;
+        // Closure
+        if ( is_object($function) )
+                return spl_object_hash($function);
 
         if (is_object($function[0]) ) {
                 // Object Class Calling