php根据用户名和手机号查询是否存在手机号码

public function checkmobileuser($data){
    $sql='select phone,username from wlzbpre_user where phone="'.$data['phone'].'" or username="'.$data['phone'].'" and status="1" limit 1';
    $phone=m()->query($sql);
    $phone =$phone[0]['phone'];
    $username=$phone[0]['username'];
    if(empty($phone)){
      $remark=array(
        'respcode'=>'081',
        'respdesc'=>'手机号/用户名不存在',
        'acctdetails'=>array('token'=>''),
      );
    }else{
      $remark=array(
        'respcode'=>'000',
        'respdesc'=>'手机号已存在',
        'acctdetails'=>array('phone'=>$phone,'username'=>$username),
      );
    }
    return $remark;
  }