cache-example.php

<?
$arData = array();

$cacheId = "cache_id/{$id}";
$cacheDir = $cacheId;

$cacheTag = "iblock_id_{$iblock}";

$cacheTime = 360000;
$cache = \Bitrix\Main\Data\Cache::createInstance();

if ($cache->initCache($cacheTime, $cacheId, $cacheDir)) {
	$arData = $cache->getVars();
} elseif ($cache->startDataCache()) {

	$cacheManager = Bitrix\Main\Application::getInstance()->getTaggedCache();
	$cacheManager->startTagCache($cacheDir);
	
	
	// get result	
	

	$cacheManager->registerTag($cacheTag);
	$cacheManager->registerTag("iblock_new");
	$cacheManager->endTagCache();

	$cache->endDataCache($arData);

}

cache-no-tags-example.php

<?

$arData = array();

$id = "";
$cacheId = "cache_id/{$id}";
$cacheDir = $cacheId;

$cacheTime = 360000;
$cache = \Bitrix\Main\Data\Cache::createInstance();

if ($cache->initCache($cacheTime, $cacheId, $cacheDir)) {

	$arData = $cache->getVars();

} elseif ($cache->startDataCache()) {
	
	
	// get result	
	

	$cache->endDataCache($arData);

}