不确定在 php 页面中显示 Psr7 Guzzle Response 的正确方法是什么。
现在,我正在做:
use GuzzleHttp\Psr7\BufferStream;
use GuzzleHttp\Psr7\Response;
class Main extends \pla\igg\Main
{
function __construct()
{
$stream = new BufferStream();
$stream->write("Hello I am a buffer");
$response = new Response();
$response = $response->withBody($stream);
$response = $response->withStatus('201');
$response = $response->withHeader("Content-type", "text/plain");
$response = $response->withAddedHeader("IGG", "0.4.0");
//Outputing the response
http_response_code($response->getStatusCode());
foreach ($response->getHeaders() as $strName => $arrValue)
{
foreach ($arrValue as $strValue)
{
header("{$strName}:{$strValue}");
}
}
echo $response->getBody()->getContents();
}
}
有没有更 OOP 的方式来显示响应?
做同样事情的一种更 OOP 的方法是创建一个 Sender 对象,它需要ResponseInterface
在它的构造函数中。该类将负责设置标头、清除缓冲区并呈现响应:
use Psr\Http\Message\ResponseInterface;
class Sender
{
protected $response;
public function __construct(ResponseInterface $response)
{
$this->response = $response;
}
public function send(): void
{
$this->sendHeaders();
$this->sendContent();
$this->clearBuffers();
}
protected function sendHeaders(): void
{
$response = $this->response;
$headers = $response->getHeaders();
$version = $response->getProtocolVersion();
$status = $response->getStatusCode();
$reason = $response->getReasonPhrase();
$httpString = sprintf('HTTP/%s %s %s', $version, $status, $reason);
// custom headers
foreach ($headers as $key => $values) {
foreach ($values as $value) {
header($key.': '.$value, false);
}
}
// status
header($httpString, true, $status);
}
protected function sendContent()
{
echo (string) $this->response->getBody();
}
protected function clearBuffers()
{
if (function_exists('fastcgi_finish_request')) {
fastcgi_finish_request();
} elseif (PHP_SAPI !== 'cli') {
$this->closeOutputBuffers();
}
}
private function closeOutputBuffers()
{
if (ob_get_level()) {
ob_end_flush();
}
}
}
像这样使用它:
$sender = new Sender($response);
$sender->send();
更好的是,您可以将 Sender 注入您的应用程序对象并将其转换为类变量,因此您可以这样调用它:
function renderAllMyCoolStuff()
{
$this->sender->send();
}
我将把它作为读者的练习来实现 Response 对象的 getter 和 setter,以及接收一些内容字符串并将其内部转换为 Response 对象的方法。
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