Ticket #4988: 4988.array_replace_recursive.patch

src/bp-activity/bp-activity-classes.php

@@ -354 +354 @@
 
                         // override some arguments if needed
                         if ( ! empty( $scope_query['override'] ) ) {
-                                $r = array_replace_recursive( $r, $scope_query['override'] );
+                                $r = self::array_replace_recursive( $r, $scope_query['override'] );
                         }
                 // Advanced filtering
                 } elseif ( ! empty( $r['filter_query'] ) ) {
@@ -1666 +1666 @@
 
                 return $wpdb->get_var( $wpdb->prepare( "UPDATE {$bp->activity->table_name} SET hide_sitewide = 1 WHERE user_id = %d", $user_id ) );
         }
+
+        /**
+         * PHP-agnostic version of {@link array_replace_recursive()}.
+         *
+         * array_replace_recursive() is a PHP 5.3 function.  BuddyPress (and
+         * WordPress) currently supports down to PHP 5.2, so this method is a workaround
+         * for PHP 5.2.
+         *
+         * Note: array_replace_recursive() supports infinite arguments, but for our use-
+         * case, we only need to support two arguments.
+         *
+         * Subject to removal once WordPress makes PHP 5.3.0 the minimum requirement.
+         *
+         * @since BuddyPress (2.2.0)
+         *
+         * @see http://php.net/manual/en/function.array-replace-recursive.php#109390
+         *
+         * @param  array $base         Array with keys needing to be replaced
+         * @param  array $replacements Array with the replaced keys
+         * @return array
+         */
+        protected static function array_replace_recursive( $base = array(), $replacements = array() ) {
+                if ( function_exists( 'array_replace_recursive' ) ) {
+                        return array_replace_recursive( $base, $replacements );
+                }
+
+                // PHP 5.2-compatible version
+                // http://php.net/manual/en/function.array-replace-recursive.php#109390
+                foreach ( array_slice( func_get_args(), 1 ) as $replacements ) {
+                        $bref_stack = array( &$base );
+                        $head_stack = array( $replacements );
+
+                        do {
+                                end( $bref_stack );
+
+                                $bref = &$bref_stack[ key( $bref_stack ) ];
+                                $head = array_pop( $head_stack );
+
+                                unset( $bref_stack[ key($bref_stack) ] );
+
+                                foreach ( array_keys( $head ) as $key ) {
+                                        if ( isset( $key, $bref ) && is_array( $bref[$key] ) && is_array( $head[$key] ) ) {
+                                                $bref_stack[] = &$bref[ $key ];
+                                                $head_stack[] = $head[ $key ];
+                                        } else {
+                                                $bref[ $key ] = $head[ $key ];
+                                        }
+                                }
+                        } while( count( $head_stack ) );
+                }
+
+                return $base;
+        }
 }
 
 /**