I think this script is of big interest to any noob around here :) including me :)
What I want to create is a little code that I can use in any file and will generate a breadcrumb like this:
If the file is called "website.com/templates/index.php" the breadcrumb should show:
Website.com > Templates
^^ link ^^plain text
If the file is called "website.com/templates/template_some_name.php" the breadcrumb should show:
Website.com > Templates > Template Some Name
^^ link ^^link ^^plain text
Hmm, from the examples you gave it seems like "$_SERVER['REQUEST_URI']" and the explode() function could help you. You could use explode to break up the URL following the domain name into an array, separating it at each forward-slash.
As a very basic example, something like this could be implemented:
$crumbs = explode("/",$_SERVER["REQUEST_URI"]);
foreach($crumbs as $crumb){
echo ucfirst(str_replace(array(".php","_"),array(""," "),$crumb) . ' ');
}