Nelmio\Alice\FixtureBuilder\ExpressionLanguage\Lexer\FunctionTokenizer::append PHP Method

    private function append(array &$tree, array $values, int $startKey, int $endKey)
    {
        $value = '';
        for ($i = $startKey; $i < $endKey; $i++) {
            $value .= $values[$i];
        }
        $tree[] = $value . 'IDENTITY_OR_FUNCTION_END';
    }