基于文件的网页身份认证

php代码  

<?php
   $authorized = FALSE;

   if (isset($_SERVER[&#39;PHP_AUTH_USER&#39;]) && isset($_SERVER[&#39;PHP_AUTH_PW&#39;])) {
      $authFile = file("./password.txt");

      foreach ($authFile as $login) {
         list($username, $password) = explode(":", $login);
         $password = trim($password);
         if (($username == $_SERVER[&#39;PHP_AUTH_USER&#39;]) && ($password == md5($_SERVER[&#39;PHP_AUTH_PW&#39;]))) {
            $authorized = TRUE;
            break;
         }
      }
   }

   // If not authorized, display authentication prompt or 401 error
   if (! $authorized) {
      header(&#39;WWW-Authenticate: Basic Realm="Secret Stash"&#39;);
      header(&#39;HTTP/1.0 401 Unauthorized&#39;);
      print(&#39;You must provide the proper credentials!&#39;);
      exit;
   }

?>


<!-- 
password.txt
joe:60d99e58d66a5e0f4f89ec3ddd1d9a80
-->