function log_array()
{
    $arArgs = func_get_args();
    $sResult = '';
    foreach ($arArgs as $arArg) {
        $sResult .= "\n\n" . print_r($arArg, true);
    }

    if (!defined('LOG_FILENAME')) {
        define('LOG_FILENAME', $_SERVER['DOCUMENT_ROOT'] . '/bitrix/log.txt');
    }
    AddMessage2Log($sResult, 'log_array -> ');
}