What steps can be taken to troubleshoot and resolve the issue of the session variable 'vorname' not being displayed on the 'decision.php' page?

The issue of the session variable 'vorname' not being displayed on the 'decision.php' page can be resolved by ensuring that the session_start() function is called at the beginning of both the 'index.php' and 'decision.php' pages. This function initializes a session or resumes the current one based on a session identifier passed via a GET or POST request, or passed via a cookie. 

<?php
// index.php
session_start();
$_SESSION['vorname'] = 'John';

// decision.php
session_start();
if(isset($_SESSION['vorname'])) {
    echo "Hello, " . $_SESSION['vorname'];
} else {
    echo "Session variable 'vorname' not set.";
}
?>

Keywords

session variable troubleshooting resolve display decision.php

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