I basically tried this mode_rewrite rule below. It works with a slash on the end but I want it to work whether it has a trailing slash on the end or not. Basically I want it like this as some people see it as normal with a slash on the end and others don't hence why I want it to work whether it's there or not.
RewriteRule ^signup/register(.[^/]*) /signup/register.php [NC]
Basically it will work like http://localhost/signup/register/
but if I remove the / from the end it gives 404 error.