htaccess url rewrite php ( URL Rewriting )

Most dynamic sites include variables in their URLs that tell the site what information to show the user. Typically, this gives URLs like the following, telling the relevant script on a site to load product number 1.

www.webgagan.com?product.php&product_id=1&category_id=2

We want convert above url to such url

www.webgagan.com/product/1/2/ 

Simply use below code in .htaccess file

Create product.php page

1)  RewriteRule ^([a-zA-Z0-9_-]+)/{0,1}$       $1.php [QSA,L]

     From

www.webgagan.com?product.php

     To
www.webgagan.com/product/     ->Fire this url

 2)  RewriteRule ^([a-zA-Z0-9_-]+)/([a-zA-Z0-9_-]+)/{0,1}$     $1.php?id1=$2 [QSA,L]

      From

www.webgagan.com?product.php&product_id=1

     To
www.webgagan.com/product/1/    ->Fire this url

3)  RewriteRule ^([a-zA-Z0-9_-]+)/([a-zA-Z0-9_-]+)/([a-zA-Z0-9_-]+)/{0,1}$    $1.php?id1=$2&  id2=$3 [QSA,L]
     From

www.webgagan.com?product.php&product_id=1&cate_id=2

     To
www.webgagan.com/product/1/2    ->Fire this url

If you want echo query string values simply use.

<?php

echo $_GET['id1']; 

echo $_GET['id2']; 

?>