[RESOLVED] Array & SESSIONS

[thekidscareya]

I'm having a problem with an array:

			$id = mysql_insert_id();
			$count = count($_SESSION['graphics']);
			$session = $_SESSION['graphics'];

                    // If the session is empty
		if($count == 0)
			{
                            // Add $id to the session
			$_SESSION['graphics'] = array($id);
                            $session = $_SESSION['graphics'];
			}else{
                            // Session has variables
                            // Create a new array with id
			$new_array = array($id);

			// merge with session array
			$session = array_merge($_SESSION['graphics'], $new_array);
			}
		print_r($session);

When i print_r() the session I always get Array ( [0] => 18 )...with only one row in the array. I keep on refreshing it, but to no avail.

What did I do wrong? Thanks.

[bbreslauer]

What are you trying to do?

[thekidscareya]

The user can enter as many records in to a table ($id is the unique ID for the record). The user can enter multiple records into the table. I want to keep all the unique ID the user has entered in a session.

[toplay]

The easiest way is to create a two dimensional array (if you want to keep 'graphics' as an index key) like so:

$_SESSION['graphics'][] = mysql_insert_id();

For each new id a new index is created that will keep the value of the row id. To display values you can do:

echo $SESSION['graphics'][0]; // displays 1st id user inserted
echo $SESSION['graphics'][1]; // displays 2nd id user inserted and so on

To display all values, do something like this:

for($i=0, $cnt=count($_SESSION['graphics']); $i < $cnt; $i++)
    echo $_SESSION['graphics'][$i];

hth.

[thekidscareya]

When I run the following code:

$_SESSION['graphics'][] = mysql_insert_id(); 
print_r($_SESSION['graphics']);

I get Array ( [0] => 24 )...the same problem as I had before....I even tried refreshing it.

[toplay]

Keep testing, like inserting another row. Then you'll get something like:

Array ( [0] => 24 [1] => 25)

as an example.

What I said was that you'll get a new index for each row value inserted. They are not going to be on the same index value in my example.

Why do you want them all in one index value? If you want them all in the same variable/index value then you'll have to separate them by a delimiter (like a comma) so you'll know one from another.

It's still easier to keep in separate index values and if you still want them all together like in a string then you could simply do this at the end:

$list_of_ids = implode(',', $_SESSION['graphics']);
echo $list_of_ids; // Displays: 24,25 as an example

🙂

[thekidscareya]

It's still not working...I'm thinking it may be my PHP server. Is there anything in the php.ini file that may cause this problem? (I'm running it on a computer - Win XP, Apache, etc. - on my network).

I'm going to try on a real server.

[toplay]

Oh, if you simply mean that the sessions aren't being saved, then that could be caused by lots of different reasons.

.

[thekidscareya]

I feel so stupid...you don't wanna hear what I did.

I forgot to put session_start()...I was reading your post...and I saw session_start() and then I realized what I was missing.

thanks for your help...I appreciate it.

[toplay]

Good, I'm glad you found the problem.

Happy coding.

🙂