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A
Anonymous
October 11, 2007
Question

create array and store in php session variable

  • October 11, 2007
  • 1 reply
  • 461 views
This is probably a simple thing but I am having trouble getting my head around it.

First: I need one solution where global variables are allowed on the host server as well as one where they are not or a solution where it does not matter

An id is listed in $GET['id'] at each visit to a specific page, but I need a way to store the previous 'id' values as well as the new one.
I wanted to create an array and store it in a session variable and add to it with each subsequent visit to the page.
Then I need to display all those values on the page.
But I just can't get it to work. Well, I can get it to work but it is a huge chunk of code with static variables. I need this to be more efficient code and not tied to an array with static values.

The problem BELOW is that I just can't seem to get this as an array, when the page is accessed it is always a single value.
Can anyone help me get this in a session variable or otherwise help get it working?


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1 reply

N
Newsgroup_User
Inspiring
October 11, 2007
Glass wrote:
> First: I need one solution where global variables are allowed on the host
> server as well as one where they are not or a solution where it does not matter

The first thing you need to understand is how PHP works. The script runs
each time the page is called, but the web is a "stateless" environment.
That means that each request to a web server is completely independent
of any other. Consequently, your script is condemned to live in
ignorance of previous requests.

The way round this is to use session variables, but remember that a
session has a limited life (usually 14 minutes).

> if(isset($_GET['id']))
> {
> $select[$i] = $_GET['id'];
> $i = $i + 1;
> }
> foreach ($select as $selected) { echo $selected."<br />";

<?php
session_start();
if (isset($_GET['id'])) {
$_SESSION['select'][] = $_GET['id'];
}
if (isset($_SESSION['select'])) {
foreach($_SESSION['select'] as $selected) {
echo $selected.'<br />';
}
}

--
David Powers, Adobe Community Expert
Author, "The Essential Guide to Dreamweaver CS3" (friends of ED)
Author, "PHP Solutions" (friends of ED)
http://foundationphp.com/
A
Anonymous
October 11, 2007
Thank you for your help. However, your superior tone is not necessary ("The first thing you need to understand is how PHP works."). I was well aware that session variables needed to be utilized, that much was in the original question. The only unfamiliar thing was this usage of 'select':
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