Help with this code

Hello

I have php page i need code to prevents them from working on any site out side my domain
thank you

 

check $_SERVER["HTTP_REFERER"] if it comes from your own domain. be sure to allow both www.something.com and something.com

 

<?php

if (!$_SERVER["HTTP_REFERER"] == 'mysite.com' || !$_SERVER["HTTP_REFERER"] == www.mysite.com)
{
           die('Must come from this domain');
}

?>

Code (markup):

 

it help for me too

 

If you do use $_SERVER["HTTP_REFERER"] i recommend regexing it and just compare to the domain part of the url .
[edit]

ps. some browsers strip the referrer so make other checks also.

 

Thank you very much for your help