Not work.. Why?

RewriteEngine is not working on my website

[sosoro]

RewriteEngine on
RewriteRule ^([0-9]+)/.*$ [exemple1.com...]
$link = "http://www.exemple2.comro/category$/" .str_replace('+', '_', urlencode($title)) .'.htm';

What is wrong? I saved into an ".htacces" file and i upload to my server.

[coopster]

Welcome to WebmasterWorld, sosoro.

You haven't offered much explanation in what is not working here for you. I'm afraid you'll have to offer more details. And don't forget to read the forum Charter [webmasterworld.com] first where there are posting guidelines as well as links to the documentation and resources that you are using.