Memcache::increment Increment item's value &reftitle.description; intMemcache::increment stringkey intvalue Memcache::increment increments value of the item on the specified value. If item with key key was not numeric and cannot be converted to number, it will change it's value to value. Memcache::increment does not create an item if it didn't exist. Do not use Memcache::increment with item, which was stored compressed, because consequent call to Memcache::get will fail. Also you can use memcache_increment function. &reftitle.parameters; key Key of the item to increment. value Increment the item by value. Optional and defaults to 1. &reftitle.returnvalues; Returns new item's value on success or &false; on failure. &reftitle.examples; connect('memcache_host', 11211); /* increment counter by 3 */ $current_value = $memcache_obj->increment('counter', 3); ?> ]]> &reftitle.seealso; Memcache::decrement Memcache::replace