Forum Moderators: open
Like this:
thesite.com/links/index.php?params=displaycat-7
Then, explode() [php.net] params back into the variables.
$my_params = explode [php.net]("-",$params);
$action = $my_params[0];
$catid = $my_params[1];
Another great method is to eliminate the querystring altogether with mod_rewrite [httpd.apache.org]
site:www.mydomain.com -blablabla
Now Google will display all the pages of your site in the index that don't contain the string blablabla.