$_SESSION variable in php (page to page)

Question

Whenever I go to a page i.e. login page or any other page, I want to save the name of the page in a $_SESSION variable.

login page:

<?php
    session_start();
    $_SESSION['page'] = 'login.htm';    
?>

It works only for the login page and doesnt overwrite in other pages for e.g. home page:

<?php
    session_start();
    $_SESSION['page'] = "home.htm"; 
?>

I need the sesssion variable 'page' to hold the last page I was, can anyone help please?

Kyle · Accepted Answer · 2013-02-27 16:59:26Z

3

Why not just use $_SERVER['HTTP_REFERER']? This will give you the previous page in PHP, without having to add anything to sessions.

answered Feb 27, 2013 at 16:59

Kyle

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5 Comments

user2116287 Over a year ago

am making like an app so i need to know it for REDIRECTION purpose

cernunnos Over a year ago

Note that HTTP_REFERER will not work properly when user refreshes page

Kyle Over a year ago

You can still use this for redirection purposes. Not sure what you mean.

user2116287 Over a year ago

sorry am new on web design, how would the $_SERVER['HTTP_REFERER'] work like in the case of my example ..

cernunnos Over a year ago

$_SERVER['HTTP_REFERER'] holds the page the user came from, so assuming the user was at "home.htm" and clicked a link to go to "login.htm", $_SERVER['HTTP_REFERER'] = "home.htm

Martin Turjak · Accepted Answer · 2013-02-27 17:01:49Z

1

when you navigate to a new page first retrive the saved "back" variable (and use it in a back link/breadcrumbs or something), and then overwrite the sessions "back" variable with the curent page, to have it ready for the next move =)

answered Feb 27, 2013 at 17:01

Martin Turjak

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Comments

cernunnos · Accepted Answer · 2013-02-27 17:10:55Z

1

If all you need is default "back" functionality you should let the browser handle it.

If what you want is something to be used as a breadcrumb following some internal order (or path in a tree) my advice is to let each page "know" the path that leads to it.

If you really need to know from what page the user came from save it to a previous variable before you write over the current variable.

// Make sure user didnt just refresh the page
if ($_SESSION["current"] !== "currentPage.php") {
  $_SESSION["previous"] = $_SESSION["current"];
  $_SESSION["current"] = "currentPage.php";
}

answered Feb 27, 2013 at 17:10

cernunnos

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Comments

Martin · Accepted Answer · 2013-02-27 16:59:30Z

0

You're using different keys.. 'page' and 'back'.

answered Feb 27, 2013 at 16:59

Martin

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