e

@@ -235,11 +235,15 @@ class App {
     public function requestArr($name='*',array $default = [], $filter = null){
         $value = $this->request($name,$default, $filter);
         if(!is_array($value)){
-            $j = @json_decode($value,true);
-            if(is_array($j)){
-                $value = $j;
+            if($value){
+                $j = @json_decode($value,true);
+                if(is_array($j)){
+                    $value = $j;
+                }else{
+                    $value = explode(',',(string) $value);
+                }
             }else{
-                $value = explode(',',(string) $value);
+                $value = [];
             }
         }
         foreach ($value as $k=>$v){