addServer('localhost', 11211); if ($data = $cache->get('mycache')) { echo "Cache exists! Retrieving from cache..."; } else { echo "Cache does not exist. Retrieving from database and saving to cache..."; $data = getDataFromDatabase(); $cache->set('mycache', $data); } print_r($data); ?>
connect('localhost', 6379); if ($data = $cache->get('mycache')) { echo "Cache exists! Retrieving from cache..."; } else { echo "Cache does not exist. Retrieving from database and saving to cache..."; $data = getDataFromDatabase(); $cache->set('mycache', $data); } print_r($data); ?>These examples use different caching mechanisms and methods for saving and retrieving data from the cache. The package library used can vary depending on the caching mechanism selected. For example, for APC, the PHP extension php_apc must be installed, while for Memcached and Redis, the php_memcached and php_redis extensions must be installed respectively. Additionally, the corresponding PHP libraries for each caching mechanism must also be installed.