Mod Rewrite

I'm a little rusty with this because it's been a while. Could someone tell me how I would make http://www.site.com/title-of-page-123456 access the content from http://www.site.com/page.php?title=title_of_page&id=123456 ?

 

Try this code for .htaccess

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)-(\d+)$ /page.php?title=$1&id=$2 [L]

Code (markup):

Here I thought that You meant
http://www.site.com/page.php?title=title-of-page&id=123456

If the version
http://www.site.com/page.php?title=title_of_page&id=123456
is correct, then on page.php will need to make a replace

if(isset($_GET['title']))
    $_GET['title'] = str_replace('-', '_', $_GET['title'] );

Code (markup):