Ticket #11817: 11817_get_menu_by_slug_or_name_fix.patch

wp-includes/nav-menu.php

@@ -29 +29 @@
  * @param int|string $menu The menu to check
  * @return mixed Menu Object, if exists.
  */
-function is_nav_menu( $menu ) {
-        if ( $menu ) {
-                $menu = get_term( $menu, 'nav_menu' );
-        } elseif ( !$menu ) {
-                $menu = get_term_by( 'slug', $menu, 'nav_menu' );
-        } elseif( !$menu ) {
-                $menu = get_term_by( 'name', $menu, 'nav_menu' );
-        } else {
+function is_nav_menu( $value ) {
+        if ( $value ) {
+                $menu = get_term( $value, 'nav_menu' );
+        }
+        if ( !$menu ) {
+                $menu = get_term_by( 'slug', $value, 'nav_menu' );
+        }
+        if ( !$menu ) {
+                $menu = get_term_by( 'name', $value, 'nav_menu' );
+        }
+        if ( !$menu ) {
                 $menu = false;
         }