using sessions to pass http_referer php

Question

here is the ordeal:

on index.php

<?php
    session_start();
    $url = $_SERVER['HTTP_REFERER'];
    $_SESSION['abc'] ='$url';
?>

i echo on the page $_SERVER['HTTP_REFERER']; and i get what i want

later on site i have a reservation page and i use the session to

<?php 
    session_start();

    if (isset($_SESSION['abc'])) {
        echo $_SESSION['abc'];
    } 
    else {
        echo 'error';
    }               
?>

it echo's error and i'm confused why the data isn't passing..

Any idea's from the php gurus out there, thanks. Just want it to print the HTTP_REFERER

is session_start() called on all of the pages? cause you say.."later" on site. — Andreas
– Andreas, Commented May 30, 2012 at 23:37
Try to print_r($_SESSION) in the second page. And in index.html, replace $_SESSION['abc'] = '$url' with $_SESSION['abc'] = $url. — flowfree
– flowfree, Commented May 30, 2012 at 23:39
@bsdnoobz: Why put quotes around $url at all? Quotes are not needed. — Asaph
– Asaph, Commented May 30, 2012 at 23:40
do I have to call session_start() on every single page? or just on pages I want to use $_SESSION superglobal — Michael O'Brien
– Michael O'Brien, Commented May 30, 2012 at 23:42
You need to call session_start() on every page that you would like to access session data. Once you have started the session, session_start() only resumes the previously started session. — Aventuris
– Aventuris, Commented May 30, 2012 at 23:50

user1420086 · Accepted Answer · 2012-05-31 00:31:01Z

0

Looking at the comments, you appear to be using both HTTP and HTTPS.

You will need to pass a session ID from HTTP to HTTPS.

index.php

<?php
    session_start();

    $_SESSION['abc'] = $_SERVER['HTTP_REFERER'];

    $session_id = session_id();
?>

You will then need to pass $session_id to your reservation page, perhaps via GET:

reservation.php

<?php
    session_start();

    session_id($_GET['session_id']);

    if (isset($_SESSION['abc']))
        echo $_SESSION['abc'];
?>

answered May 31, 2012 at 0:31

user1420086

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1 Comment

Michael O'Brien Over a year ago

Thank you so much! My only issue now is that i'm getting the referer as the page before my reservation page, not the initial HTTP_REFERER, so it echo's "mysite.com/pagebeforereservation" how do i get the initail HTTP_REFERER to transfer over?

Community · Accepted Answer · 2017-05-23 11:56:29Z

0

Unfortunately, by default a session won't persist between HTTP and HTTPS. Rather than rehash the solutions, I'll point towards where the question has come up before:

edited May 23, 2017 at 11:56

CommunityBot

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answered May 31, 2012 at 0:50

John C

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