Example of new PHP6 syntax

gistfile1.php

<?php
function html($closure) {
    return tag('html', func_get_args());
}

function head($closure) {
    return tag('head', func_get_args());
}

function title($closure) {
    return tag('title', func_get_args());
}

function body($closure) {
    return tag('body', func_get_args());
}   

function p($closure) {
    return tag('p', func_get_args());
}

function tag($name, array $closures) {
    $html = "<{$name}>";
    foreach($closures as $closure) {
        if($closure instanceof Closure) {
            $html .= $closure();
        }
        else {
            $html .= $closure;
        }
    }
    $html .= "</{$name}>";
    return $html;
}

echo html(
    head(
        title('Titulo da Pagina')
    ),

    body(
        p('Hello World'),
        p(
            'Outro Paragrafo',
            p('Um subparagrafo agora')
        )
    )
);
?>