I'm having a problem with my htaccess rules. i have this rule in my htaccess file:
RewriteEngine On
RewriteRule ^u/([a-z-0-9-_]+)$ user.php?id=$1
and its work just fine but when i write username with dot (.) its does not work and the browser say the page not found i looked up the internet and nothing helped me so can anyone here help ?