Sessions

[Cactus Hugger]

Perhaps I don't quite understand sessions yet... but why does this code always output: "0Page" ??? Thanks in advance.

<?php
session_start();
// Use $HTTP_SESSION_VARS with PHP 4.0.6 or less
if (!isset($_SESSION['count'])) {
    $_SESSION['count'] = 0;
} else {
    $_SESSION['count']++;
}
echo $_SESSION['count'];
echo "<a href=\"stest.php\">Page</a>";
?>

Also: I got this from the PHP.net site, so.... why does it not work?

[Jona]

If you look at the logic in the code, it is like this. It starts the session, checks to see if the variable $_SESSION['count'] has a value. If it does, it changes the variable ($_SESSION['count']) to equal zero, if it doesn't, the variable $_SESSION['count'] will increment (meaning if it was 0, it will be 1, if it was 1, it will be 2, etc.). Then it writes to the page the variable's value, and a link to "stest.php." Now then, you'll realize that you have no <br> tag in there, so the variable will be written right along side of the link. Also, in this function, unless the session variable "$count" has a value, it will become zero. Therefore, try putting ?count=1 at the end of your page and re-running the script. Then test the results.

I've never used sessions before, but this is just what it looks like to me..

Jona

[Jona]

Wait, take off all of that. The code works better than you know. Run the code and click the link. Each time the number will increment.

Jona

[Cactus Hugger]

That's weird. I click the link and it stays at zero.
Are there any PHP settings in the php.ini file (or elsewhere) that could effect this?

[Jona]

Go back and look at the page that gave you that code.

Jona

[Cactus Hugger]

Fixed! I went through the php.ini stuff for sessions, reading all the comments in the file, and finally found it: session.save_path. I set that to a folder, and it works!

[Jona]

Great!

Jona