PHP GET - HTACCESS按ID重写/读取URL？

How to rewrite and get ID from a URL:

I am using a Ticket Script that gets the content from mysql database by ID. And i was wondering If we could get the ID from url by only typing the site.com/ID HERE.

Our Main URL looks like: site.com/index.php?id=1A2VD4

But how to READ and GET the ID using URL: site.com/1A2VD4

The Htaccess I am using:

• RewriteEngine On

  RewriteRule ^([a-zA-Z0-9_-]+)$ index.php?id=$1½

  RewriteRule ^([a-zA-Z0-9_-]+)/$ index.php?id=$1

I tried a lot different GET methods and Regular Expression in my php code, but not luck at all / Centos / Apache 2.2! I will be appereciated if I could get some help!

Thanks in advance

You can use this code in root's .htaccess:

RewriteEngine On

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([\w-]+)/?$ /index.php?id=$1 [L,QSA]

Reference: Apache mod_rewrite Introduction

Inside index.php you can this id by using $_GET['id']