CHECK PHP SESSION - ISSET($SESSION - IS NOT WORKING

It sounds like you are having an issue with the isset() function in PHP not working properly when checking for a session variable. Here are a few things to check:

• Make sure that the session has been started with the session_start() function before trying to access any session variables.
• Check that you are using the correct syntax for accessing the session variable, which should be $_SESSION['variable_name'].
• Check if the variable you are trying to check isset is set before page load.
• Also check the case sensitivity of the variable name, as session variables are case-sensitive in PHP.

If you are still having issues, please provide more information about your code and the specific error message you are receiving.