How to parse variable to layout

I'm trying out Fat-Free Framework, and I do not now how to parse variables to my layouts. Well somehow I do, but not the way I want. I know you can parse variables via routes, and then using set. But I have this layout where I have some specific variables which needs to be in my layout, and these will always be there, like my title and other stuff. But it doesn't make sense that I need to parse these for every route, is there some way to do this.

I did read all the documentation they have on fatfreeframework.com and searched trough google and this site, but I could not find anything specific.

Solution

It looks like when you say "parse", you mean "define". I'll assume your question is: "how to define variables so that they are accessible from templates?".

There are various ways to achieve this. The basic way is to define variables using $f3->set(), then to display a template in which the defined variables will be accessible. For example:

//index.php
$f3->route('GET /example1',function($f3){
  $f3->set('title','my title');
  $f3->set('stuff','my stuff');
  $tpl=\Template::instance();
  echo $tpl->render('index.html');
}};

//index.html
<h1>{{$title}}</h1>
<p>{{$stuff}}</p>

Now if you need variables commons to all routes, you can define them outside of the route scope:

$f3->set('title','my title');//$title will be accessible from all routes
$f3->set('stuff','my stuff');//$stuff also
$f3->route('GET /example1',...);
$f3->route('GET /example2',...);

If you have many of those common variables and you need the possibility to modify them without changing the code, you can define them in a configuration file (.ini format):

//index.php
$f3->config('cfg/commons.ini');
$f3->route('GET /example1',...);
$f3->route('GET /example2',...);

//commons.ini
title = my title
stuff = my stuff