/**
* Delete value from the session
*
* @param string $key The key to be deleted
* @param array $options Options array. Not used for this adapter method.
* @return closure Function returning boolean `true` if the key no longer exists
* in the session, `false` otherwise
*/
public static function delete($key, array $options = array())
{
if (!static::isStarted() && !static::_start()) {
throw new RuntimeException("Could not start session.");
}
$class = __CLASS__;
return function ($self, $params) use($class) {
$key = $params['key'];
$class::overwrite($_SESSION, Set::remove($_SESSION, $key));
return !Set::check($_SESSION, $key);
};
}