Lectures/includes/config.php

<?php
session_start();

class Config {
    private static $config = null;
    
    public static function load() {
        if (self::$config === null) {
            $configFile = __DIR__ . '/../config.json';
            if (!file_exists($configFile)) {
                throw new Exception('Configuration file not found');
            }
            self::$config = json_decode(file_get_contents($configFile), true);
        }
        return self::$config;
    }
    
    public static function get($key, $default = null) {
        $config = self::load();
        return $config[$key] ?? $default;
    }

    public static function save($config) {
        $configFile = __DIR__ . '/../config.json';
        
        $jsonContent = json_encode($config, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);
        
        if (file_put_contents($configFile, $jsonContent) === false) {
            throw new Exception('Impossible de sauvegarder la configuration');
        }
        
        self::$config = $config;
        return true;
    }
}