php help

[timothy12]

Hi Im new to php and trying to get an understanding of some of the syntax -
I was hoping that someone could explain the following bits of code and what it does

if (isset($_SESSION['somesession'][$somevariable])) {
$items = $_SESSION['somesession'][$somevariable]; }

I understand the isset method but I dont understand what this is supposed to do

$_SESSION['somesession'][$somevariable]

is it a concatenation or merge of somesort -

any help would be greatly appreciated.

Thanks

Tim

[NogDog]

It specifies one element of a 2-dimension array.

[Gudlife]

$_SESSION['somesession'][$somevariable]

->is an array.

$_SESSION['somesession'] is the array name
[$somevariable] is the position in the array

example:

<?php
session_start();
$A = array();
$name = "name";
$A[$name] = "something";
$_SESSION['test'] = $A;
print ($_SESSION['test'][$name]);
//prints "something";
?>