Hey everyone,
I'm facing an issue with PHP session variables on the same page. Here's what's happening:
I have a PHP script that sets a session variable using the `$_SESSION` superglobal. The variable is set successfully and I can access it immediately after setting it. However, when I try to access the same session variable again on the same page, it seems to be lost.
Here's an example of what I'm doing:
```php
session_start();
// Set session variable
$_SESSION['my_variable'] = 'Hello, World!';
// Access session variable immediately after setting it
echo $_SESSION['my_variable']; // Outputs: Hello, World!
// Access session variable again on the same page
echo $_SESSION['my_variable']; // Outputs: Notice: Undefined index: my_variable
```
I'm not sure why I'm getting the "Undefined index" notice when trying to access the session variable again. Is there something I'm missing here? Is it not possible to access session variables on the same page where they were set?
Any help or guidance would be greatly appreciated!

Hey,
I've also faced a similar issue with PHP session variables not persisting on the same page. After spending some time troubleshooting, I discovered that it was caused by a common mistake - inadvertently unsetting or overwriting the session variable somewhere in the code.
Check if there are any other parts of your script where you might be unintentionally removing the session variable using `unset($_SESSION['my_variable'])` or assigning a new value to it. Sometimes, a small oversight like this can cause the variable to appear lost when accessed again on the same page.
Make sure to thoroughly review your code and look for any lines where the session variable might be unintentionally modified or deleted. You could try commenting out or temporarily removing these lines to see if it resolves the issue.
It's also worth noting that if the session expires or gets destroyed during the page request, you won't be able to access the session variable again, resulting in an "Undefined index" notice.
I hope my experience helps you find a solution. Let me know if you have any more questions or need further assistance!