Ticket #30430: wp-deep-copy-withclass2.diff

wp-includes/class-wp-object-cache.php

@@ -263 +263 @@
 
                 if ( is_object( $data ) ) {
                         $data = clone $data;
+                } elseif ( is_array( $data ) ) {
+                        $data = $this->deep_copy( $data );
                 }
 
                 $this->cache[ $group ][ $key ] = $data;
@@ -561 +563 @@
                 }
                 echo '</ul>';
         }
+
+        /**
+        * Performs a deep copy of an item to ensure that arrays of objects
+        * are properly duplicated
+        *
+        * @param mixed $data The data to be duplicated
+        * @return mixed copy of the data
+        */
+        public function deep_copy( $data ) {
+                if ( is_object( $data ) ) {
+                        return clone $data;
+                } elseif ( is_array( $data ) ) {
+                        $new = array();
+                        foreach ( $data as $key => $value ) {
+                                if ( is_object( $value ) ) {
+                                        $new[ $key ] = clone $value;
+                                } elseif ( is_array( $value ) ) {
+                                        $new[ $key ] = $this->deep_copy( $value );
+                                } else {
+                                        $new[ $key ] = $value;
+                                }
+                        }
+
+                        return $new;
+                } else {
+                        return $data;
+                }
+        }
 }