php - How do I set up mod rewrite to do this? -

hi guys heres scene - i'm building web application creates accounts users. setup file structure:

root/index.php root/someotherfile.php root/images/image-sub-folder/image.jpg root/js/somejs.js 

when users create account choose fixed group name , users can join group. thought of having textbox in login screen enter group user belongs login to. instead have virtual folders in case:

root/group-name/index.php 

i heard can done apache mod rewrite i'm not sure how - here?

basically instead of having &group-name=yourgroupname appended every page of nature above.

you can configure mod rewrite in .htaccess file, e.g.

root/.htaccess:

rewriteengine on  #make sure urls represent files or directories not rewritten rewritecond %{request_filename} !-f rewritecond %{request_filename} !-d  #update if files not in /root rewritebase /root   rewriterule ^([^/]+)/(.*\.php)$ $2?group-name=$1 [l,qsa] 

so request matching /[groupname]/[php file] should re-written /[php file]?group-name=[groupname].

• l means last rule, if matches don't continue running other rules
• qsa means append original query string (so other parameters still passed php script)

you maybe replace pattern matches groupname ([^/]+) more restrictive, e.g. ([a-za-z0-9_-]+).

you can put configuration in 1 of apache configuration files, can faster parsing .htaccess file on every request.