Add variable in session variable in PHP?

Question

How do I add a variable into $_SESSION?

$product = 0;
$_SESSION['product_number'.$product.''] = true;

It is not working.

Solution 1

You need to make sure you used session_start();

page1.php

<?php
session_start();

$product = 0;
$_SESSION['product_number'.$product] = true;

?>

page2.php

<?php
session_start();
$product = 0;
if ($_SESSION['product_number'.$product]) echo 'Session variable was set!';
else echo 'It was not!';
?>

Solution 2

This may work for you:

<?
session_start();
$product = 0;
$_SESSION['product_number'] = $product;
?>

Comments

[Jason McCreary]

You should read PHP Sessions if you are just getting started.

[Sammitch]

1. Get rid of the .'', it is useless. 2. Are you calling session_start() at the beginning of your script?

[Paul Dessert]

"Is not working." Is not a valid error message.

[khaverim]

Give more information; what do you mean by 'is not working'?

[Landon]

agree with @sammitch, you need to call session_start() at the top of your script if you want to use session variables at all.

[Wolfgang Fahl]

see stackoverflow.com/questions/12704382/session-variable

[John V.]

@MattiRauhiainen Make sure to mark this answer as "accepted" if it is what you where looking for. Green tick = accept.