src/cache/ConfigurationCache.php
public static function isCached($identifier, $accessor) {
    return array_key_exists($identifier, self::$cache) && array_key_exists($accessor, self::$cache[$identifier]);
  }
public static function isCached($identifier, $accessor) {
    return array_key_exists($identifier, self::$cache) && array_key_exists($accessor, self::$cache[$identifier]);
  }
public static function isCached ( $ identifier , $ accessor ) { return array_key_exists ( $ identifier , self :: $ cache ) && array_key_exists ( $ accessor , self :: $ cache [ $ identifier ] ) ; }
Check, if the cache has stored a value for the given identifier and accessor.

@param $identifier string identifier of the configuration loader
@param $accessor string accessor of the configuration loader
@return bool true, if the cache has an entry for given identifier and accessor
Check if the cache has stored a value for the given identifier and accessor .