README

HTTP Request/Response abstraction

Instalation

composer require avris/http

Usage

Request

What PHP puts in ugly superglobals $_SERVER, $_GET, $_POST, $_COOKIE and $_FILES, the Request class encapsulates in a nice object. Just do:

$request = Request::fromGlobals();

and you'll be able to elegantly access all the data and pass it along.

• getMethod(): string
• isPost(): bool
• getScheme(): string
• getHost(): string
• getAbsoluteBase(): string
• getBase(): string
• getFrontController(): string
• getUrl(): string
• getCleanUrl(): string
• getFullUrl(): string
• getIp(bool $safe = true): string
• isAjax(): bool
• getQuery(): Bag -- $_GET
• getData(): Bag -- $_POST
• getCookies(): Bag
• getServer(): Bag
• getFiles(): FileBag
• getHeaders(): HeaderBag
• getBody(): string
• getJsonBody()

For purposes of testing etc. you can also create a request object with some arbitrary data, for instance:

$request = Request::create('DELETE', '/posts/123', [], ['redirect' => '1']);

The abstraction layer for headers provides additional features, like getting the best Accept-* value.

Files in the request will be wrapped in an UploadedFile:

if ($request->isPost()) {
    $file = $request->getFiles()->get('attachment');
    $filename = $file->moveToRandom(__DIR__ . '/pics');
    $post->setAttachment($filename);
}

Response

In a similar fashon, the Response class encapsulates an HTTP Response. Your controller might for instance return:

return new Response(
    '<strong>OK</strong>',
    201,
    ['Content-Type' => 'text/html; charset=utf-8'],
    new CookieBag([
        new Cookie('foo', 'bar', new \DateTime('+10 minutes')),
    ]),
);

This object can then be passed on, modified, extended etc., without actually sending any data over HTTP. Only after you execute $response->send(), your headers, cookies, response code and content will be sent.

The library provides some nice helpers for creating more standard responses:

* `new JsonResponse(['foo' => bar])`
* `new RedirectResponse('/done')`
* `new FileResponse($post->getAttachmentPath(), 'image.png')`
* `new MemoryFileResponse($image->getContent())`
* `new StreamedResponse(function() { while (true) { echo 'heartbeat' . PHP_EOL; sleep(1); }})`

Session

Instead of using the $_SESSION superglobal, you can encapsulate it in a Session object. It works basically the same, but lets you write more elegant, object oriented, testable code, as well as easily exchange the standard session with a different one.

StoragelessSession is an alternative approach to standard HTTP sessions. It doesn't story any information on the server, instead sends it back and forth using cookies. (Therefore it should only be used for small amount of non-confidential data over a secure connection!)

$session = new StoragelessSession;
// ...
$session->onRequest($request); 
// ...
$foo = $session->get('foo'); 
$session->set('bar', $bar);
// ...
$session->onResponse($response);
// ...
$response->send();

Copyright

• Author: Andre Prusinowski (Avris.it)
• Licence: MIT