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const CACHE_TAG_NAMESPACE_MODULE = "YOUR_MODULES_CACHE_TAGS"; $cacheGroup = 'namespace_module'; $useCache = Mage::app()->useCache($cacheGroup); if (true === $useCache) { $cacheId = 'unique_name'; if ($cacheContent = Mage::app()->loadCache($cacheId)) { $html ...

Mage::app()->removeCache($cacheId); Flush all Magento cache entries Mage::app()->cleanCache() or: Mage::app()->getCacheInstance()->flush();

Redis configuration: Install redis (2.4+ required) Install phpredis Install the Magento extension Cm_Cache_Backend_Redis (only for Magento 1.7 and below) Edit your app/etc/local.xml: <global> ... <cache> <backend>Cm_Cache_Backend_Redis</backend> <b...