会话列表排序

app/chat/controller/MessageController.php

@@ -242,12 +242,14 @@ class MessageController extends ApiController
                     // 如果是别人发的显示昵称
                     $msg = $chat_user['nick_name'] . '：' . $lastMsg['content'];
                 }
+                $data[$k]['send_time_origin'] = $lastMsg['send_time'];
                 $data[$k]['send_time'] = formatWeChatTime($lastMsg['send_time']);
             }
             $data[$k]['msg'] = $msg;
             $data[$k]['unread_count'] = $unreadCount;
             $data[$k]['is_th'] = ChatGroup::isTh($session['group_id'], $this->uid);
         }
+        $data = param_sort($data, 'send_time_origin');
         return $this->success(['list' => $data]);
     }