此代码在浏览器中返回一个空白页面.你能发现任何错误吗？权限和网址已检查.phpcodechecker.com说它没关系
<?php
# Check for POST login data, else set initial values
if (isset($_POST["user"])) {
$user=$_POST['user'];
$pass=hash('sha256',$_POST['pass']);
}
else {
$user="";
$pass="";
}
# Check Login Data
#
# Password is hashed (SHA256). In this case it is 'admin'.
if($user == "admin"
&& $pass == "8c6976e5b5410415bde908bd4dee15dfb167a9c873fc4bb8a81f6f2ab448a918")
{
# Load content from local storage
include("../localstorage/content.html");
}
else
{
# Show login form. Request for username and password
echo
'<html>
<body>
<form method="POST" action="">
Username: <input type="text" name="user"><br/>
Password: <input …