Check last visited between two php pages - php

Question

Is there some sort of PHP code that allows me figure out which of the two pages was last visited.
Here is why i need it.
I have 3 pages called:
user-management.php, manage-membership.php and manage-user.php
There are two ways of getting to manage-user.php. One is to click on the name of the user in user-management.php and the other is to click on the membership account holder in membership-management. Both user-management and membership-management are completely different pages so please don't tell me to merge them to make it easier, because it won't get easier.
What i want to do is track where i'm coming from.
For example, if i'm going to manage-user.php from user-management.php, when all the editing is done, i want it to redirect back to user-management.php, and the same for membership-management.
How do i check to see which of the two pages I came from and redirect back to those pages accordingly?

Answer 1

Have each of your scripts record their name in the $_SESSION, so you're keeping track of where you came from:
user-management.php:
$_SESSION['came_from'] = 'user-management.php';
and then in your manage-user.php script:
Back
This is more reliable than using the HTTP referer, because not everyone sends refers, or sends the ACTUAL referer.

Answer 2

you could use $_SERVER['HTTP_REFERER'];
But this is not so safe, better store the page in a session and
check it then.
session_start();
...
$_SESSION['log'][] = $_SERVER['PHP_SELF'];
...
if ($_SESSION['log'][count($_SESSION['log'])-1] == "xxx") {
do code...
}

Answer 3

Tried this? -> $_SERVER["HTTP_REFERER"]
You can read more from this: http://www.electrictoolbox.com/php-http-referer-variable/

Answer 4

You could use $_SERVER['HTTP_REFERER']; but the user can also set their browser to not send the referer header. You could also do something like this:
At beginning of page:
session_start();
$lastVisited = $_SESSION['last_visited'];
At end:
$_SESSION['last_visited'] = $thisPagename;