問(wèn)題描述

<?php

header('content-type:text/html;charset=utf-8');

if(isset($_post['submit'])){

$username = $_post['username'];

$password = $_post['password'];

if(empty($username)||empty($password)){

header('Refresh:3;url=login.php');

echo '用戶名密碼不能為空';

exit;

}

}else{

include_once 'templates/login.html';

}

?>

問(wèn)題解答

找出問(wèn)題了，是php的變量沒(méi)注意區(qū)分大小寫(xiě)