lithium\storage\cache\Adapter::increment PHP Method

Performs an increment operation on specified numeric cache item.

abstract public increment ( string $key, integer $offset = 1 ) : integer \| boolean
$key	string	Key of numeric cache item to increment.
$offset	integer	Offset to increment - defaults to `1`.
return	integer \| boolean	The item's new value on successful increment, else `false`.

    public abstract function increment($key, $offset = 1);

Adapter