public static function engine($config)
    {
        if (!static::$_enabled) {
            return new NullEngine();
        }

        $registry = static::getRegistry();

        if (isset($registry->{$config})) {
            return $registry->{$config};
        }

        static::_buildEngine($config);

        return $registry->{$config};
    }
public static function engine($config)
    {
        if (!static::$_enabled) {
            return new NullEngine();
        }

        $registry = static::getRegistry();

        if (isset($registry->{$config})) {
            return $registry->{$config};
        }

        static::_buildEngine($config);

        return $registry->{$config};
    }
public static function engine ( $ config ) { if ( ! static :: $ _enabled ) { return new NullEngine ( ) ; } $ registry = static :: getRegistry ( ) ; if ( isset ( $ registry -> { $ config } ) ) { return $ registry -> { $ config } ; } static :: _buildEngine ( $ config ) ; return $ registry -> { $ config } ; }
Fetch the engine attached to a specific configuration name.

If the cache engine & configuration are missing an error will be
triggered.

@param string $config The configuration name you want an engine for.
@return \Cake\Cache\CacheEngine When caching is disabled a null engine will be returned.
@deprecated 3.7.0 Use Cache::pool() instead. In 4.0 all cache engines will implement the
PSR16 interface and this method does not return objects implementing that interface.
Fetch the engine attached to a specific configuration name .