PHP if condition doesn't work for urls matching

Question

I am trying to match two URLs but it seems doesn't work. I have tried works fine if I put manually.

Here is the code:

$referby = $_SERVER['HTTP_REFERER'];
$link1="http://domain.com/admin/ajax/passcodev.php?order_id=".$orderid;
$link2="http://www.domain.com/admin/ajax/passcodev.php?order_id=".$orderid;

if($referby<>$link1 || $referby<>$link2)
 {
    header('Location:passcodev.php?order_id='.$orderid);
 }

I have no idea where I am doing mistake.

@Magicprog.fr i didn't know that comparison operator o.o thanks for your input — Marco Mura
– Marco Mura, Commented Nov 18, 2014 at 15:42

John Conde · Accepted Answer · 2014-11-18 15:37:03Z

5

if($referby<>$link1 || $referby<>$link2) means if $referby does not match $link1 or $link2, proceed. Since it can't match both it always evaluates to true.

You need to use && (and):

if($referby != $link1 && $referby != $link2)

answered Nov 18, 2014 at 15:37

John Conde

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