限制菜单显示2层

app/Distributor/Repositories/SiteMenu.php

@@ -31,7 +31,7 @@ class SiteMenu extends EloquentRepository
         $selectOptions =  Model::class::selectOptions($closure);
         //只显示2层
         foreach ($selectOptions as $key => $value) {
-            if (substr_count($value,' ') > 2) {
+            if (substr_count($value,' ') > 8) {
                 unset($selectOptions[$key]);
             }
         }