Url rewrite help

[darkfreaks]

okay i need a switch statement that will output an url

 

like

 

 

switch($cat)

{
case($cat=='ads'):
//output url with ads
case($cat=='touchups'):
//output url to browser with touchups

default:
//output default category to browser
$cat=='websites'
}

 

then i need a code that would count the pages and substr the base url of the site  like

 

 

/ads.php 

 

would become

 

/?pg=index&cat=ads

 

i aleady have it like

 

/?pg=index

 

i just need the &cat= coded in

 

 

 

 

[Adam]

Sorry, I don't follow?

[darkfreaks]

i am trying to make it so i  folder for each category i  have a php file that reads each folder and outputs all files in that folder.i  want to make it where i can use a base substring and narrow ads.php down to just ads and then write it in a url that outputs to the browser. using a switch/if statement.