Пример скрипта на Битрикс

<?require($_SERVER["DOCUMENT_ROOT"]."/bitrix/modules/main/admin/phpinfo.php");?>

bitrix/modules/main/admin/phpinfo.php:

<?

require_once(dirname(__FILE__)."/../include/prolog_admin_before.php");

if(!$USER->CanDoOperation('edit_php'))

{

        $APPLICATION->AuthForm(GetMessage("ACCESS_DENIED"));

}

else

{

        phpinfo();

}

?>