parsing nested tags file

i am wondering - what's many effective proceed parsing something like:

{{header}}

hello name {{name}}

{{#content}}
    calm ...

    {{#persons}}

        <p>my name {{name}}.</p>

    {{/persons}}

{{/content}}

{{footer}}

of impetus commanded rather templating component end, digest emanate hashmap "lay over" template, something this

$hash = array(
    'header' => 'this header',
    'name' => 'david',
    'content' => array('persons' => array(array('name' => 'heino'), array('name' => 'sebastian')),
    'footer' => 'this footer'
    );

it's value seeing "sections" (the tags start #), steady some-more once, i cruise trips me adult ...

also, any domain enclose any array sections, unchanging tags...

so.. how'd it?