htaccess rules hit 404 when using numbers in url

Question

I've following htaccess to generate permalinks for my app:

6   #Permalinks
7   RewriteEngine on
8   <IfModule mod_rewrite.c>
9   RewriteEngine On
10  #catch potential subpages first
11  RewriteRule ^([a-z-]+)/([a-z-]+)/?$ index.php?page=$1&subpage=$2 [L,NC,QSA]
12  #
13  RewriteRule ^([a-z-]+)/?$ index.php?page=$1 [L,NC,QSA]
14  </IfModule>

Is correct regexp: [0-9a-z-] ?

Answer 1

Yes to match numbers also use these rules:

RewriteRule ^([a-z0-9-]+)/([a-z0-9-]+)/?$ index.php?page=$1&subpage=$2 [L,NC,QSA]

RewriteRule ^([a-z0-9-]+)/?$ index.php?page=$1 [L,NC,QSA]