public function getFunctions()
    {
        return array(
            new ExpressionFunction(
                'date',
                function ($value) {
                    return sprintf('date(%1$s, time())', $value);
                },
                function ($arguments, $str) {
                    return date($str, time());
                }
            ),
        );
    }
public function getFunctions()
    {
        return array(
            new ExpressionFunction(
                'date',
                function ($value) {
                    return sprintf('date(%1$s, time())', $value);
                },
                function ($arguments, $str) {
                    return date($str, time());
                }
            ),
        );
    }
{@inheritdoc}