/**

 * 如果直接示例化 Request 默认是没有参数的，可以自己传入

 * 本方法将 PHP 超全局变量作为参数然后实例化自身(Request)进行初始化。

 */

$request = Request::createFromGlobals();

    /**

     * Sets the parameters for this request.

     *

     * This method also re-initializes all properties.

     *

     * @param array           $query      The GET parameters

     * @param array           $request    The POST parameters

     * @param array           $attributes The request attributes (parameters parsed from the PATH_INFO, ...)

     * @param array           $cookies    The COOKIE parameters

     * @param array           $files      The FILES parameters

     * @param array           $server     The SERVER parameters

     * @param string|resource $content    The raw body data

     */

    public function initialize(array $query = array(), array $request = array(), array $attributes = array(), array $cookies = array(), array $files = array(), array $server = array(), $content = null)

    {

        $this->request = new ParameterBag($request);

        $this->query = new ParameterBag($query);

        $this->attributes = new ParameterBag($attributes);

        $this->cookies = new ParameterBag($cookies);

        $this->files = new FileBag($files);

        $this->server = new ServerBag($server);

        $this->headers = new HeaderBag($this->server->getHeaders());

        $this->content = $content;

        $this->languages = null;

        $this->charsets = null;

        $this->encodings = null;

        $this->acceptableContentTypes = null;

        $this->pathInfo = null;

        $this->requestUri = null;

        $this->baseUrl = null;

        $this->basePath = null;

        $this->method = null;

        $this->format = null;

    }

class ParameterBag implements \IteratorAggregate, \Countable

{

    /**

     * Parameter storage.

     */

    protected $parameters;

    /**

     * @param array $parameters An array of parameters

     */

    public function __construct(array $parameters = array())

    {

        $this->parameters = $parameters;

    }

    /**

     * Returns the parameters.

     *

     * @return array An array of parameters

     */

    public function all()

    {

        return $this->parameters;

    }

    // 其它实现的方法

    // ...

｝

$request->attributes->get('q');

$request->server->get('SCRIPT_NAME');

$request->query->all( );

$request->request->keys();

$request->cookies->remove('sc');

$request->get('q');        # 依次从 attributes，query，request 检测是否有key的值，有就返回；兼容 get、post 方法时使用，否则建议访问对应公开属性上的方法，例如：$request->query->get('q');

$request->getScriptName(); # 等同 $request->server->get('SCRIPT_NAME');