ﾕｰｻﾞｰ認証のｻﾝﾌﾟﾙｺｰﾄﾞ

if(!isset($_SERVER[PHP_AUTH_USER]) || !(($_SERVER[PHP_AUTH_USER] == ﾛｸﾞｲﾝID) && ($_SERVER[PHP_AUTH_PW] == ﾛｸﾞｲﾝPASS))) {
　header('WWW-Authenticate: Basic realm="hoge hoge"');
　header('HTTP/1.0 401 Unauthorized');
　echo "Login Failed";
　exit;
}