[SOLVED] preventing direct url access

[nblackwood]

How would I prevent direct access to one or more pages? I'm setting up a site in merged html/php, and would like to prevent direct page access, to where only the outside payment gateway can call these pages, and not by direct input into the url bar. I presume it would involve some sort of redirect query, but I cannot figure it out. I am currently using Dreamweaver CS4. Any help would be appreciated.

[sKunKbad]

You could define something in the script that includes or initializes the script you want to protect, and then check for it at the top of that script.

 

core.php

<?php
     define('CORE_LOADED',1);
     include "protected.php";
?>

 

protected.php

<?php
     if(!defined('CORE_LOADED')) exit('No direct script access allowed');
?>

[nblackwood]

Thanks for your quick response. Got it to work. How would I go about defining access grants to a specific website, say, PayPal?