.htaccess change a path to a query strings

Question

I have files in example.com/

contact.php
recent.php
videos.php
watch.php

example.com/page/ > /page/ is not a folder.

Answer 1

You can combine regex and shorten your rules in your .htaccess with QSA flag:

RewriteEngine on
RewriteBase /

# add www in host name
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteRule ^(.*?)/?$ http://www.%{HTTP_HOST}/$1 [R=301,NE,L]

# Unless directory, remove trailing slash
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.+)/$ /$1 [NE,R=301,L]

RewriteRule ^page/(submit|contact|search|recent|playlist)/?$ $1.php [L,NC]

RewriteRule ^page/(videos|watch)/([^/]+)/?$ $1.php?title=$2 [L,QSA,NC]