RE: [PHP] SESSION array problems

On 01 October 2008 21:24, tedd advised:

At 2:38 PM -0500 10/1/08, Afan Pasalic wrote:
main reason - if you sort by first or last name you will lose
"index".
this way is index always "linked" to first/last name.

Your point is well taken, but I'm not sorting this.

True, the arrays have a common index, which is 0, 1, 2, 3 ...

[user_id] => Array
(
[0] => 6156
[1] => 7030
[2] => 656
)

[first_name] => Array
(
[0] => Diane
[1] => Fred
[2] => Helen
)

[last_name] => Array
(
[0] => Cable
[1] => Cago
[2] => Cahalan

But the data is relational, such as:

Diane Cable has user id 6156.

I collected the data like this (in a loop):

$_SESSION['user_id'][] = $value;
$_SESSION['first_name'][] = $first_name;
$_SESSION['last_name'][] = $last_name;

Doing this is fine -- the index is automatic.

I thought I could retrieve the data by using:

$num_users = count($_SESSION['user_id']); // <--- this works (correct
$num_users)

for ($i = 0; $i < $num_users; $i++)
{
$last_name = $_SESSION['last_name'][$i];
$first_name = $_SESSION['first_name'][$i];
echo("<tr><td>$last_name</td><td>$first_name</td></tr>"); }

But that doesn't work. What's really odd is only the first loop works.

I'm thinking register_globals here. In every example you've posted,
you've used $last_name and $_SESSION['last_name'] -- but these are the
same thing if register_globals is on, and would lead to your posted
output with the single characters on the 2nd iteration and nothing after
that!

At least one posted suggestion used $first and $last rather than
$first_name and $last_name -- did you actually try with the shorter
names, or stick with your longer matching ones?

Cheers!

Mike

--
Mike Ford, Electronic Information Developer,
C507, Leeds Metropolitan University, Civic Quarter Campus,
Woodhouse Lane, LEEDS, LS1 3HE, United Kingdom
Email: m.ford@xxxxxxxxxxxxxx
Tel: +44 113 812 4730


To view the terms under which this email is distributed, please go to http://disclaimer.leedsmet.ac.uk/email.htm
.