How can the code provided in the forum thread be improved to handle language switching more effectively?

The code provided in the forum thread can be improved to handle language switching more effectively by using a more structured approach, such as implementing a language file with all the translations and using a session variable to store the selected language. This will make it easier to manage and update translations in the future.

<?php
session_start();

// Function to set the language based on user selection
function setLanguage($lang) {
    $_SESSION['language'] = $lang;
}

// Function to get the translated text based on the selected language
function translate($key) {
    $lang = isset($_SESSION['language']) ? $_SESSION['language'] : 'en';
    $translations = include 'languages/' . $lang . '.php';
    
    return isset($translations[$key]) ? $translations[$key] : $key;
}

// Example usage
setLanguage('fr');
echo translate('hello'); // Output: Bonjour
?>