Include on Header plus link inside it

Hmm. Need help on designing a header (or even footer and navigator php files) that has a link that's not an absolute. A little explanation I guess should help.

Here's my scenario. I got a header.php to be included at index.php (home page) and also included at index.php (at catalog directory under /). So something like this

Code:

---

/
  + index.php (Includes header.php)
  + header.php
  + catalog/ (Directory catalog)
    + index.php (Includes header.php)

---

Header has a link for products that is <a href="catalog/">PRODUCTS</a>, so by the time the user clicks at PRODUCTS in index.php (home) it goes to catalog/index.php where includes a header with an <a href="catalog/">PRODUCTS</a>, so clicking the products there would give me a Not Found having a link like http://localhost/pcx/catalog/catalog/ where pcx is a project folder inside my localhost.

Hope to have my questions clear. Thanks in advance.

<?php

require ('header.php');

?>

i think tahts wat u want i dont really understand ur question could u explain better?

I can just <?php include "header.php"; ?> but then I'll explain a bit of a problem. Structure of my project is

Code:

---

/
  + index.php (includes header.php)
  + header.php
  + catalog/ (directory)
    + index.php (includes ../header.php)

---

At header.php there's a link <a href="catalog/">PRODUCTS</a>, so at index.php (home, not the catalog directory) I can go to catalog/index.php buy just clicking it. Now at index.php (now in the catalog directory) the link <a href="catalog/">PRODUCTS</a> is still there because it is included from header.php. So clicking the link at index.php (now in the catalog directory) will give me a 404 because there is no catalog folder in the catalog folder.

How do I design this thing? I mean I need help on placing things. Where should I place what and what should I place where?

Its something thats bothered me for quite a while... but my dodgy solution is,

For something in the root dir.

Code:

---

$currdir = ".";

Header.php----
print "<a href=\"" . $currdir . "/link\">";

---

So if you were in the catalog directory, then you would make $currdir ".." I do believe. So just have the variable at the top of the page and it'll work. I think you could probably do it using some of the super global variables as well.. figure out the location of the current file and then if needed add a "../"