Contao\CoreBundle\DataContainer\PaletteManipulator::implode PHP Method

    private function implode(array $config)
    {
        $palette = '';
        foreach ($config as $legend => $group) {
            if (count($group['fields']) < 1) {
                continue;
            }
            if ('' !== $palette) {
                $palette .= ';';
            }
            if (!is_int($legend)) {
                $palette .= sprintf('{%s%s},', $legend, $group['hide'] ? ':hide' : '');
            }
            $palette .= implode(',', $group['fields']);
        }
        return $palette;
    }