Page aliases handled by my CMS code, not .htaccess rewrite rules?

[Vojta]

Hello,

I'm learning how to write simple CMS and I'd like it to support page aliases. So that instead of http://www.myweb.com/?id=123 I could use http://www.myweb.com/some-page for example. I don't want to use rewrite rules in .htaccess but I'd like to do it similarly as Drupal. I understood Drupal redirects 404 page not found error to index.php and then somehow handles it. Can you advise how to do it please? Or is there any tutorial or example available?

 

Thank you in advance! Vojta

[.josh]

in general you would do something like this:

 

// dunno how you personally map id numbers to file names..perhaps you query a page name from a db, using the id number,  but here's an example array that maps id to page
$pages = array (1 => 'a.php', 2 => 'b.php');
$id = (int) $_GET['id'];
if (file_exists($pages[$id])) {
  header('Location: ' . $pages[$id]);
  exit();
}