Is this the code for conn.php?

Question

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);    ?>

Answer 1

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