lithium\storage\session\adapter\Php::read()

public method

Read a value from the session.

Parameters

null|string $key
Key of the entry to be read. If no key is passed, all current session data is returned.
array $options
Options array. Not used for this adapter method.

Returns

\Closure

Function returning data in the session if successful, false otherwise.

Source

	public function read($key = null, array $options = []) {
		if (!$this->isStarted() && !$this->_start()) {
			throw new RuntimeException('Could not start session.');
		}
		return function($params) {
			$key = $params['key'];

			if (!$key) {
				return $_SESSION;
			}
			if (strpos($key, '.') === false) {
				return isset($_SESSION[$key]) ? $_SESSION[$key] : null;
			}
			$filter  = function($keys, $data) use (&$filter) {
				$key = array_shift($keys);
				if (isset($data[$key])) {
					return (empty($keys)) ? $data[$key] : $filter($keys, $data[$key]);
				}
			};
			return $filter(explode('.', $key), $_SESSION);
		};
	}