Adding specific variable to every link on page?!?!

PHP
1

Is it possible to add a specific variable on each link in the entire page without hardcoding it…

Lets say I have some links like this:
mypage.com/index.php?var1=test
mypage.com/index.php?var1=test&var2=123
mypage.com/index.php?var1=test&var2=123&var3=ups

Now what I want is to add this variable:
&staticvar=1

To each link without having to type it… Is that possible?

Thanks in advance :wink:

2

If you need it on every single page on your site, why does it need to be a variable?

Just set a constant and make it available to your scripts.

3

Not sure what you mean?

Well the staticvar is only uses sometimes…

$staticvar = urlencode($_GET['staticvar']);
4

Well, in this way you can say that its not a staticvar?!? The variable could change, but it is important to get on every link on the page… But how?

5

Why not use a $_SESSION?

You’d still need to do this to pass the session hash for browsers with sessions disabled, but that’s maybe .001% of users.

6

Hmmm, not sure how to do this. What I’,m trying to accomplish is to choose 2 different css styles depending on how the user is getting to my page. My page is made like a basic page and a facebook app.

I want to be able to determine if the user is watching the page from facebook or not. Untill now I have tryid to do so by adding an variable to all my links (&app=‘.$app.’) and then doing this:

$app = urlencode($_GET['app']);

if ($app == 'fb'){
// GET THE FB CSS //
} else {
// GET THE REGULAR CSS //
}

But the problem here is that I have to many links in my page to alter them all… Can this still be done with $_SESSION and if yes… How?

7

Although not the most reliable thing in the world, $_SERVER[‘HTTP_REFERER’] should help. I say not the most reliable because the user can remove its contents if they browse in privacy mode.

Remember to filter the input of any $SERVER['HTTP*'] variable as the browser set their values making them subject to attack by an attack script (SQL injections, that sort of nonsense).

8

The problem with this is that the facebook app is within a iframe and doesn’t give any feedback within facebook?!?!

Any ideas?