PHP警告:查询和获取

时间:2018-05-16 21:42:06

标签: php mysqli parameters warnings connect

  

警告:mysqli_query()需要至少2个参数,给定1个   警告:mysqli_fetch_assoc()期望参数1为mysqli_result,给定为null

我也有这些警告,我该如何解决?

public static function checklogin() {
    mysqli_connect();

    $username = $_SESSION['USER'];
    $password = $_SESSION['PASS'];

    $query = "
        SELECT 
            `account`.`id`,
            `account`.`status`
        FROM `account`.`account`
        WHERE `account`.`login` = '".$username."'
        AND `account`.`password`='".$password."'
    ";
    $exec = mysqli_query($query);
    $row = mysqli_fetch_assoc($exec);
    if($row['status'] == 'OK&apos
    {
        return true;
    }
    else
    {
        return false;
    }
}

1 个答案:

答案 0 :(得分:0)

您需要使用mysqli_connect保存数据库连接,并为了实际连接到db主机配置。请阅读连接文档here以获得更好的解释 使用db地址更新代码(确保您知道连接

$db=mysqli_connect("127.0.0.1", "my_user", "my_password", "my_db");
if(!$db) {
  echo "ERROR connecting to my_db";
  return false;
}

// sanitize
$username = filter_var($_SESSION['USER'], FILTER_SANITIZE_STRING);
$password = filter_var($_SESSION['PASS'], FILTER_SANITIZE_STRING);

$query = "
    SELECT 
        `account`.`id`,
        `account`.`status`
    FROM `account`.`account`
    WHERE `account`.`login` = '".$username."'
    AND `account`.`password`='".$password."'
";
$exec = mysqli_query($db, $query);
$row = mysqli_fetch_assoc($exec);
...

查看mysqli_query docs