* Gets a value from the config cache.
*
* @param string $cat Config category
- * @param string $key Config key
+ * @param string $key Config key
*
- * @return mixed Returns the value of the Config entry or '!<unset>!' if not set
+ * @return null|mixed Returns the value of the Config entry or null if not set
*/
function get($cat, $key = null);
*/
function delete($cat, $key);
- /**
- * Checks if a value is set in the config cache.
- *
- * @param string $cat Config category
- * @param string $key Config key
- * @return bool
- */
- function has($cat, $key = null);
-
/**
* Returns the whole configuration cache
*