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如何在PHP中使用基本HTTP身份验证？

php authentication basic-authentication server-variables http-authentication

2022-08-30 19:51:12

我正在尝试使用基本HTTP身份验证，并遵循PHP手册页上的示例。但它对我不起作用。变量似乎未设置。当用户尝试登录时，系统会在出现新的登录对话框时提示用户。服务器运行的是PHP 5.3.3，我已经尝试过使用Google Chrome和Internet Explorer。$_SERVER['PHP_AUTH_USER']

以下是我使用的简单示例：

<?php
if (!isset($_SERVER['PHP_AUTH_USER'])) {
    header('WWW-Authenticate: Basic realm="Jonas Realm"');
    header('HTTP/1.0 401 Unauthorized');
    echo 'User pressed Cancel';
    exit;
} else {
    echo "<p>Hello {$_SERVER['PHP_AUTH_USER']}.</p>";
    echo "<p>You entered {$_SERVER['PHP_AUTH_PW']} as you password.</p>";
}
?>

怎么了？如何在PHP中使用基本HTTP身份验证？

答案 1

试试这个：

<?php
    /*
    ** Define a couple of functions for
    ** starting and ending an HTML document
    */
    function startPage()
    {
        print("<html>\n");
        print("<head>\n");
        print("<title>Listing 24-1</title>\n");
        print("</head>\n");
        print("<body>\n");
    }

    function endPage()
    {
        print("</body>\n");
        print("</html>\n");
    }
    /*
    ** test for username/password
    */
    if( ( isset($_SERVER['PHP_AUTH_USER'] ) && ( $_SERVER['PHP_AUTH_USER'] == "leon" ) ) AND
      ( isset($_SERVER['PHP_AUTH_PW'] ) && ( $_SERVER['PHP_AUTH_PW'] == "secret" )) )
    {
        startPage();

        print("You have logged in successfully!<br>\n");

        endPage();
    }
    else
    {
        //Send headers to cause a browser to request
        //username and password from user
        header("WWW-Authenticate: " .
            "Basic realm=\"Leon's Protected Area\"");
        header("HTTP/1.0 401 Unauthorized");

        //Show failure text, which browsers usually
        //show only after several failed attempts
        print("This page is protected by HTTP " .
            "Authentication.<br>\nUse <b>leon</b> " .
            "for the username, and <b>secret</b> " .
            "for the password.<br>\n");
    }
?>

答案 2

对于 PHP-CGI：

在 .htaccess 中添加以下内容：

<IfModule mod_rewrite.c>
RewriteEngine on
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]
</IfModule>

并在脚本的开头添加以下内容：

list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) = explode(':' , base64_decode(substr($_SERVER['HTTP_AUTHORIZATION'], 6)));

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