Ticket #17923: 17923.3.patch

wp-includes/functions.php

@@ -1428 +1428 @@
  * @param mixed $param1 Either newkey or an associative_array
  * @param mixed $param2 Either newvalue or oldquery or uri
  * @param mixed $param3 Optional. Old query or uri
+ * @param bool $encode Optional.  If true, values will be rawurlencode()'d
  * @return string New URL query string.
  */
 function add_query_arg() {
@@ -1477 +1478 @@
         $qs = urlencode_deep( $qs ); // this re-URL-encodes things that were already in the query string
         if ( is_array( func_get_arg( 0 ) ) ) {
                 $kayvees = func_get_arg( 0 );
+                if ( true === @func_get_arg( 3 ) )
+                        $kayvees = array_map( 'rawurlencode', $kayvees );
                 $qs = array_merge( $qs, $kayvees );
         } else {
                 $qs[func_get_arg( 0 )] = func_get_arg( 1 );
+                if ( true === @func_get_arg( 3 ) )
+                        $qs[func_get_arg( 0 )] = rawurlencode( $qs[func_get_arg( 0 )] );
         }
 
         foreach ( (array) $qs as $k => $v ) {