Determining if a user got to the page from an inside link

Hi,

I'm wondering if there is a php function or another way to determine if a user has got to a specific page using a internal link on the website and then showing a specific content or if he arrived from outside the server to show a different content or redirect him to another page.

Thanks

 

You can use the HTTP_REFERER predefined variable.

From http://www.php.net/manual/en/reserved.variables.php:

For example:
Supose that this code is located here: http://www.digitalpoint.com/test.php

<?php
echo $_SERVER['HTTP_REFERER'];
?>

PHP:

If you clicked a link pointing to http://www.digitalpoint.com/test.php from http://www.youtsite.com/links.php then the HTTP_REFERER value would be "http://www.yoursite.com/links.php".

Here, you will know from what site the user come from.

Best regards

 

thanks a million!