SubscribeManager::setSessionOfSibscribedProducts

public function setSessionOfSibscribedProducts($itemId)
{
	$itemId = intval($itemId);
	if(!empty($_SESSION['SUBSCRIBE_PRODUCT']['LIST_PRODUCT_ID'])
		&& is_array($_SESSION['SUBSCRIBE_PRODUCT']['LIST_PRODUCT_ID']))
	{
		$_SESSION['SUBSCRIBE_PRODUCT']['LIST_PRODUCT_ID'][$itemId] = true;
	}
	else
	{
		if(empty($_SESSION['SUBSCRIBE_PRODUCT']))
			$_SESSION['SUBSCRIBE_PRODUCT'] = array();

		$_SESSION['SUBSCRIBE_PRODUCT']['LIST_PRODUCT_ID'] = array();
		$_SESSION['SUBSCRIBE_PRODUCT']['LIST_PRODUCT_ID'][$itemId] = true;
	}
}