Memcache::set Store data at the server &reftitle.description; boolMemcache::set stringkey mixedvar intflag intexpire Memcache::set stores an item var with key on the memcached server. Parameter expire is expiration time in seconds. If it's 0, the item never expires (but memcached server doesn't guarantee this item to be stored all the time, it could be deleted from the cache to make place for other items). You can use MEMCACHE_COMPRESSED constant as flag value if you want to use on-the-fly compression (uses zlib). Remember that resource variables (i.e. file and connection descriptors) cannot be stored in the cache, because they cannot be adequately represented in serialized state. Also you can use memcache_set function. &reftitle.parameters; key var flag expire &reftitle.returnvalues; &return.success; &reftitle.examples; ]]> connect('memcache_host', 11211); /* set value of item with key 'var_key', using on-the-fly compression expire time is 50 seconds */ $memcache_obj->set('var_key', 'some really big variable', MEMCACHE_COMPRESSED, 50); echo $memcache_obj->get('var_key'); ?> ]]> &reftitle.seealso; Memcache::add Memcache::replace