protected static function getFromCache($identifier, $fallback)
    {
        if (! array_key_exists($identifier, static::$configFilesCache)) {
            static::$configFilesCache[$identifier] = is_callable($fallback)
                ? $fallback($identifier)
                : $fallback;
        }

        return static::$configFilesCache[$identifier];
    }
protected static function getFromCache($identifier, $fallback)
    {
        if (! array_key_exists($identifier, static::$configFilesCache)) {
            static::$configFilesCache[$identifier] = is_callable($fallback)
                ? $fallback($identifier)
                : $fallback;
        }

        return static::$configFilesCache[$identifier];
    }
protected static function getFromCache ( $ identifier , $ fallback ) { if ( ! array_key_exists ( $ identifier , static :: $ configFilesCache ) ) { static :: $ configFilesCache [ $ identifier ] = is_callable ( $ fallback ) ? $ fallback ( $ identifier ) : $ fallback ; } return static :: $ configFilesCache [ $ identifier ] ; }
Get a config file from the config file cache.

@since 0.4.4

@param string $identifier Identifier to look for in the cache.
@param mixed  $fallback   Fallback to use to fill the cache. If $fallback is a callable, it will be executed
with $identifier as an argument.

@return mixed The latest content of the cache for the given identifier.
Get a config file from the config file cache .