tp5框架使用cookie加密算法实现登录功能示例(2)

 public function checkLogin(){
    $uid=session('uid');
    if($uid){
      $arr['error']=0;
      $arr['uid']=$uid;
      $arr['username']=session('username');
      return json($arr);
    }else{
      if(cookie('username') && cookie('password')){
        $data['username']=encryption(cookie('username'),1);
        $data['password']=encryption(cookie('password'),1);
        $loginRes=model('user')->login($data,1);
        if($loginRes['error'] == 0){
          $arr['error']=0;
          $arr['uid']=$uid;
          $arr['username']=session('username');
          return json($arr);
        }
      }
      $arr=array();
      $arr['error']=1;
      return json($arr);
    }
  }