PHP - Passing variables from one page to another

Question

I am trying to pass on the value of one variable from one PHP page to another PHP page, but for some reason, it's not working..

Here's my code for phpOne.php:

<?php
    $x = 100;
    $_SESSION['sessionVar'] = $x;
    echo "$x";
?>

And here's my code for phpTwo.php:

<?php
$x = $_SESSION['sessionVar'];
echo "$x";
?>

Thanks in-advance! Tom!

When you say its not working, what isn't? Elaborate.. Any error messages? — Ryan
– Ryan, Commented May 13, 2013 at 13:48
As andrewsi said, you have to use session_start() in every page, that uses the $_SESSION variable. Put it on the first line after <?php. Basically before any output. — Patrick Manser
– Patrick Manser, Commented May 13, 2013 at 13:48

Useless Intern · Accepted Answer · 2013-05-13 13:48:53Z

4

You need to call session_start(); on both pages.

answered May 13, 2013 at 13:48

Useless Intern

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Borniet · Accepted Answer · 2013-05-13 13:49:23Z

3

Use this:

session_start();

to start up your session. You need to add this on all pages that need to access the $_SESSION[] variables, otherwise it won't work.

answered May 13, 2013 at 13:49

Borniet

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Comments

Firebowl2000 · Accepted Answer · 2013-05-13 13:51:00Z

2

<?php
  session_start();
  $x = 100;
  $_SESSION['sessionVar'] = $x;
  echo "$x";
?>


<?php
  session_start();
  $x = $_SESSION['sessionVar'];
  echo "$x";
?>

You have to init session_start() to make use of the session variables.

answered May 13, 2013 at 13:51

Firebowl2000

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Comments

Saifur Rahman Mohsin · Accepted Answer · 2013-12-20 17:29:22Z

2

Everyone is right. Session variables are stored in the server with a reference key. The key(known as PHP SESSION ID) is stored in the server as well as the browser cookie. Each time the browser sends the key to the server. If the server gets a session_start() without a key then it initiates a new session. Whereas if the browser page has the key then it restores the session. Which is why it becomes essential that you call the session_start() in both pages. I hope this clears it up!! Good luck

Read this for deeper explanation (if you want) : http://www.php.net/manual/en/intro.session.php

answered Dec 20, 2013 at 17:29

Saifur Rahman Mohsin

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