用PHP进行HTTP认证

  
$valid_passwords = array (“mario” => “carbonell”); 
$valid_users = array_keys($valid_passwords);
  
$user = $SERVER['PHP_AUTH_USER']; 
$pass = $SERVER['PHP_AUTH_PW'];
  
$validated = (in_array($user, $valid_users)) && ($pass == $valid_passwords[$user]);
  
if (!$validated) { 
header('WWW-Authenticate: Basic realm=“My Realm”'); 
header('HTTP/1.0 401 Unauthorized'); 
die (“Not authorized”); 
}
  
// If arrives here, is a valid user. 
echo “
  
Welcome $user.
“;  
echo “  
Congratulation, you are into the system.
“;  
  
?>