Online PHP editor | output for sWsq5

<?php class ConfigManager { var $config = array(); function ConfigManager() { echo "Created\n"; } function load() { $this->config = array('foo' => 'bar'); } function get($key) { return isset($this->config[$key]) ? $this->config[$key] : null; } function set($key, $value) { $this->config[$key] = $value; } } function &config_get_manager() { static $configManager = null; if (!isset($configManager)) { $configManager = new ConfigManager; $configManager->load(); } return $configManager; } function config_get($key) { static $configManager = null; if (!isset($configManager)) { $configManager = &config_get_manager(); } return $configManager->get($key); } function config_set($key, $value) { static $configManager = null; if (!isset($configManager)) { $configManager = &config_get_manager(); } $configManager->set($key, $value); } echo config_get('foo') . "\n"; config_set('foo', 'baz'); echo config_get('foo') . "\n";