UNSET Function

[shyam13]

Does using the UNSET Function on my shopping cart, destroy my $_SESSION['cart']  ?

 

Thank You

 

Shyam

[xyph]

It could potentially. It depends on the arguments you've given it.

[shyam13]

This is my code:

 

<?php if (isset($_POST['clear']))

unset($_SESSION['cart'])

  ?>

 

the statement clears the cart, but when I now try and add products to the cart, nothing is getting added.

 

Thank You

 

Shyam

[xyph]

That's odd. Check your logic, and verify that code isn't executing on every load

 

<?php

session_start();

$_SESSION['cart'] = 'test';

echo $_SESSION['cart'];
// outputs 'test'

unset($_SESSION['cart']);

echo $_SESSION['cart'];
// undefined index notice

$_SESSION['cart'] = 'foobar';

echo $_SESSION['cart'];
// outputs foobar

?>

 

That proves even if you unset a variable, you should be able to redefine it afterwards.

 

You might have errors that aren't showing as well, you could try emptying rather than unsetting

 

if (isset($_POST['clear']))
$_SESSION['cart'] = array();

[shyam13]

I have just reread my code, there is nothing wrong with my logic which is quite strange, i changed the code to use :

 

<?php if (isset($_POST['clear']))

$_SESSION['cart'] = array();

  ?>

 

but I still have the same problem, no products are added to the cart.

 

Thank you

 

Shyam

[xyph]

Then there's something wrong with your logic.

[shyam13]

I will have a look again, if the unset session has destroyed, would it be better to create a new session?

 

Thank You

 

Shyam

[xyph]

You're destroying data within the session, not the session itself. You should easily be able to add data to it afterwards, as I showed above.

[shyam13]

I checked the logic and there seems to be a slight problem, which has now been fixed and I now able to add products to the cart.

 

Thank you for your help

 

Appreciate it

 

Shyam