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php help

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Aug 03.2012

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

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PHP

2 Comments(s) ↴

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@NogDogAug 03.2012 — It specifies one element of a 2-dimension array.
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@GudlifeAug 03.2012 — $_SESSION['somesession'][$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";

?>
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