How can developers ensure compatibility with different PHP versions when handling session variables?

To ensure compatibility with different PHP versions when handling session variables, developers should use the session functions provided by PHP rather than directly accessing the $_SESSION superglobal. This helps maintain consistency across different PHP versions and ensures that session variables are properly managed. 

<?php

// Start the session
session_start();

// Set a session variable
$_SESSION['example'] = 'value';

// Retrieve the session variable
$example = $_SESSION['example'];

// Destroy the session
session_destroy();

?>

Keywords

PHP versions session variables backward compatibility PHP functions error handling

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