Call to a member function where() on string

Question

class AdminModel extends Model {

   private $_db = '';
   public function _construct() {
       $this->_db = M('admin');
   }
   public function getAdminByUsername($username) {
       $ret = $this->_db->where('username="'.$username.'"')->find();  //说这行有问题，跟视频一样啊
       return $ret;
   }
}

是不是thinkphp没连接到mysql数据啊，报的这个错误

Answer 1

singwa 2017-04-17 17:05:07

您的construct写错了

Answer 2

singwa 2017-04-17 17:04:49

_construct  修改为 __construct