public function __construct() { $this->model = model('Base')->model; $this->cloud = Cloud::getInstance(); // 定义当前请求的系统常量 define('NOW_TIME', $_SERVER['REQUEST_TIME']); define('REQUEST_METHOD', $_SERVER['REQUEST_METHOD']); define('IS_GET', REQUEST_METHOD == 'GET' ? true : false); define('IS_POST', REQUEST_METHOD == 'POST' ? true : false); define('IS_PUT', REQUEST_METHOD == 'PUT' ? true : false); define('IS_DELETE', REQUEST_METHOD == 'DELETE' ? true : false); define('IS_AJAX', isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest'); }