ActionsChain::start

public function start($inputParams = array())
{
	if(!is_array($inputParams))
		throw new BitrixMainArgumentTypeException("inputParams", "array");

	$result = true;

	foreach($this->actionParams["ACTIONS"] as $actionId)
	{
		$action = $this->getActionObj($actionId);

		if(!$action->start($inputParams))
			$result = false;

		$arRes = $action->getResult();

		foreach($arRes as $actId => $res)
			$this->results[$actId] = $res;

		if(!$result)
			break;

		if(isset($arRes[$actionId]["OUTPUT"]["DATA"]["params"]) && is_array($arRes[$actionId]["OUTPUT"]["DATA"]["params"]))
			foreach($arRes[$actionId]["OUTPUT"]["DATA"]["params"] as $paramId => $paramValue)
				if(!isset($inputParams[$paramId]))
					$inputParams[$paramId] = $paramValue;
	}

	return $result;
}