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Homephp教程php手册php apache PHP_AUTH_USER用户登录的方法

php apache PHP_AUTH_USER用户登录的方法

Jun 13, 2016 am 10:11 AM
apapacheauthhttpphpuserbymethodmechanismuserLog inofCertification

PHP 的 HTTP 认证机制仅在 PHP 以 Apache 模块方式运行时才有效,因此该功能不适用于 CGI 版本。在 Apache 模块的 PHP 脚本中,可以用 header() 函数来向客户端浏览器发送“Authentication Required”信息,使其弹出一个用户名/密码输入窗口。当用户输入用户名和密码后,包含有 URL 的 PHP 脚本将会再次和预定义变量 PHP_AUTH_USER、PHP_AUTH_PW 和 AUTH_TYPE 一起被调用,这三个变量分别被设定为用户名,密码和认证类型。预定义变量保存在 $_SERVER 或者 $HTTP_SERVER_VARS 数组中。系统仅支持“基本的”认证

   $authorized = FALSE;

   if (isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW'])) {
      $authFile = file("./password.txt");

      foreach ($authFile as $login) {
         list($username, $password) = explode(":", $login);
         $password = trim($password);
         if (($username == $_SERVER['PHP_AUTH_USER']) && ($password == md5($_SERVER['PHP_AUTH_PW']))) {
            $authorized = TRUE;
            break;
         }
      }
   }

   // If not authorized, display authentication prompt or 401 error
   if (! $authorized) {
      header('WWW-Authenticate: Basic Realm="Secret Stash"');
      header('HTTP/1.0 401 Unauthorized');
      print('You must provide the proper credentials!');
      exit;
   }

?>


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