gx

@@ -213,7 +213,7 @@ class BlogLogic extends BaseLogic
         if(isset($this->param['id'])){
             $param['operator_id'] = $this->user['id'];
             if(isset($param['category_id']) && !empty($param['category_id'])){
-                $param['category_id'] = explode(',',$param['category_id']);
+                $param['category_id'] = implode(',',$param['category_id']);
                 $param['category_id'] = ','.trim($param['category_id'],',').',';
             }
         }else{
@@ -221,7 +221,7 @@ class BlogLogic extends BaseLogic
             $param['operator_id'] = $this->user['id'];
             $param['project_id'] = $this->user['project_id'];
             if(isset($param['category_id']) && !empty($param['category_id'])){
-                $param['category_id'] = explode(',',$param['category_id']);
+                $param['category_id'] = implode(',',$param['category_id']);
                 $param['category_id'] = ','.$param['category_id'].',';
             }
         }