.htaccess in php

Three Conditions:
productgroup.php?group=a
product.php?pid=1&gid=2
all files remove .php extension

Options +FollowSymlinks



RewriteEngine on

RewriteRule ^productgroup/([^/\.]+)/?$ productgroup.php?group=$1 [L]
RewriteRule ^product/([^/\.]+)/([^/\.]+)/?$ product.php?pid=$1&$2 [L]
RewriteRule ^/?([a-z]+)$ $1.php [L]