forum arrar filtr

app/admin/controller/Forum.php

@@ -295,4 +295,11 @@ class Forum extends AdminController
 			return json(['code'=>-1,'msg'=>'审核出错']);
 		}
 	}
+	//array_filter过滤函数
+	public function  filtr($arr){
+			if($arr === '' || $arr === null){
+				return false;
+			}
+        return true;
+	}
 }