84669 person learning
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下面
<?php $name = $_POST['username']; $pwd = md5($_POST['password']); $sql = "select * from user where username='$name'"; $info = mysql_query($sql); $res = mysql_num_rows($info); ?>
No way to link data? Just bring it with you. And the submitted post is not filtered, can it be queried directly? Doing so runs the risk of being attacked
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
No way to link data? Just bring it with you. And the submitted post is not filtered, can it be queried directly? Doing so runs the risk of being attacked