lithium\storage\cache\adapter\File::increment()

Implements lithium\storage\cache\Adapter::increment()

public method

Performs an increment operation on a specified numeric cache item.

Parameters

string $key
Key of numeric cache item to increment
integer $offset
Offset to increment - defaults to 1.

Returns

integer|boolean

The item's new value on successful increment, else false.

Source

	public function increment($key, $offset = 1) {
		if ($this->_config['scope']) {
			$key = "{$this->_config['scope']}_{$key}";
		}
		if (!$result = $this->_read($key)) {
			return false;
		}
		if (!$this->_write($key, $result['value'] += $offset, $result['expiry'])) {
			return false;
		}
		return $result['value'];
	}