URL Shortening in Apache 2

I have a site开发者_JS百科 with homepage as /var/www/mysite/index.html Now I want to direct www.mysite.com/x2312d to /var/www/mysite/app/pass.php?id=x2312d How do I do this? Where should I create .htaccess file and what should be the contents of it?

in your root /var/www

.htaccess

RewriteEngine On
RewriteBase /
RewriteCond %{SCRIPT_FILENAME} !-d
RewriteRule ^([^\.]+)$ /app/pass.php?id=$1 [NC,L]

put the .htaccess file in /var/www/mysite/app/. I'm assuming your docroot is /var/www/mysite/

make sure apache 2 has the rewrite module enabled

.htaccess:

RewriteEngine On

#allows you to still access static items in this dir
RewriteCond %{REQUEST_URI} !\.(php|css|js|gif|png|jpe?g)$

#sent it all to pass script
RewriteRule (.*)$ pass.php [L]

I like this method, assuming pass is some sort of controller. My controller for a rest api parses the /x23123d manually from the $_SERVER global var, but you could use a different rewriterule to have it be in the $_GET/$_REQUEST['id'] global var.

something like this:

RewriteRule ^app/(.+)$ app/pass.php?id=$1 [PT,L,QSA]

Good References: http://httpd.apache.org/docs/2.0/misc/rewriteguide.html

http://httpd.apache.org/docs/2.0/mod/mod_rewrite.html#rewriterule

edit: almost forgot, don't forget to handle trailing slashes too.