身份验证

HTTP身份验证（弹框验证）

<?php
if($_SERVER['PHP_AUTH_USER'] != 'user' || $_SERVER['PHP_AUTH_PW'] != 'pass')
{
    //会在服务器提示中显示提示
    header("WWW-Authenticate:Basic realm=\"input you name and pwd\"");
    header("HTTP/1.0 401 Unauthorized");
    echo $_SERVER['PHP_AUTH_USER']."<br>";
    echo "你取消登陆了<br>";
    exit;
}
else
{
    echo "<h1>Here it is!</h1>";
    echo "<p>I bet you are glad you can see this secret page.</p>";
}
?>