CXDImport::ParseDaysOfWeek

static function ParseDaysOfWeek($strDaysOfWeek)
{
	if($strDaysOfWeek == '')
		return false;

	$arResult = array();

	$arDoW = explode(",", $strDaysOfWeek);
	foreach($arDoW as $strDoW)
	{
		$arFound = array();
		if(
			preg_match("/^(d)$/", trim($strDoW), $arFound)
			&& $arFound[1] >= 1
			&& $arFound[1] <= 7
		)
			$arResult[]=intval($arFound[1]);
		else
			return false;
	}

	return $arResult;
}