如何在 PHP 中发送 HTTP/2 POST 请求
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How do I send a HTTP/2 POST request in PHP
提问by mthuong
I found a similar question at Sending HTTP/2 POST request in RubyBut I want to update my server with PHP
我在用 Ruby 发送 HTTP/2 POST 请求中发现了一个类似的问题， 但我想用 PHP 更新我的服务器
The new Apple push notification HTTP/2 based API described here: https://developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Chapters/APNsProviderAPI.html
此处描述的新 Apple 推送通知基于 HTTP/2 的 API：https: //developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Chapters/APNsProviderAPI.html
Anyone with HTTP/2 experience help me with making a request as a client in PHP.
任何有 HTTP/2 经验的人都可以帮助我以 PHP 客户端的身份发出请求。
回答by Daniel Stenberg
The CURL extension for PHP >= 5.5.24 has support for HTTP/2. (since this commit)
PHP >= 5.5.24 的 CURL 扩展支持 HTTP/2。（因为这次提交）
You also need a libcurl installed —?the underlying library that the curl functions use — with HTTP/2 support enabled. That means a libcurl newer than 7.38.0 but really, the newer the better. Libcurl has to have been built with HTTP/2 support explicitly enabled, using the --with-nghttp2flag at compile time.
您还需要安装 libcurl——curl 函数使用的底层库——并启用 HTTP/2 支持。这意味着 libcurl 比 7.38.0 新，但实际上，越新越好。Libcurl 必须在构建时显式启用 HTTP/2 支持，并--with-nghttp2在编译时使用该标志。
Just use curl as you'd normally use it, and set the CURLOPT_HTTP_VERSIONoption to use HTTP/2 by passing in CURL_HTTP_VERSION_2_0. Then you'll get the request upgraded to version 2 ifthe client and server both support it.
只需像通常使用的那样使用 curl，并CURLOPT_HTTP_VERSION通过传入CURL_HTTP_VERSION_2_0. 然后，如果客户端和服务器都支持它，您就会将请求升级到版本 2 。
Prior to PHP 5.5.24, if libcurl has been built with HTTP/2 support, you can pass in the int value of CURL_HTTP_VERSION_2_0explicitly as PHP will still pass it through to libcurl. Currently, it has a value of 3— this should not change, but could.
在 PHP 5.5.24 之前，如果 libcurl 构建时支持 HTTP/2，您可以CURL_HTTP_VERSION_2_0显式传入 int 值，因为 PHP 仍会将其传递给 libcurl。目前，它的值为3- 这不应该改变，但可以。
if (!defined('CURL_HTTP_VERSION_2_0')) {
define('CURL_HTTP_VERSION_2_0', 3);
}
$ch = curl_init();
curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
回答by tiempor3al
Having PHP >= 5.5.24 is not enough to make a HTTP/2 request with curl, even if CURL_HTTP_VERSION_2_0 is defined. You will get an error message like the following if you try to make a request to APNS (Apple Push Notification Service):
即使定义了 CURL_HTTP_VERSION_2_0，PHP >= 5.5.24 也不足以使用 curl 发出 HTTP/2 请求。如果您尝试向 APNS（Apple 推送通知服务）发出请求，您将收到如下错误消息：
?@@?HTTP/2 client preface string missing or corrupt. Hex dump for received bytes: 504f5354202f332f6465766963652f616538666562613534
Since curl is a bindingfor libcurl, you must also have curl with http/2 enabled.
由于 curl 是libcurl的绑定，因此您还必须启用 curl 并启用 http/2。
For a sample code, see my answerto a similar question here on SO
有关示例代码，请参阅我在 SO 上对类似问题的回答
For install procedure, you can follow this tutorial
对于安装过程，您可以按照本教程
回答by Gennadiy Litvinyuk
At the current moment there is no direct HTTP/2support in PHP.
目前HTTP/2，PHP 中没有直接支持。
There is an ideato add such a support in the future direct to PHP: https://wiki.php.net/ideas/php6#http2_support
有一个想法是将来直接向 PHP 添加这样的支持：https: //wiki.php.net/ideas/php6#http2_support
The 3rd Party library Guzzle https://github.com/guzzle/guzzlesupports HTTP/2, if the correct php and curl version are installed:
第 3 方库 Guzzle https://github.com/guzzle/guzzle支持 HTTP/2，如果安装了正确的 php 和 curl 版本：
use GuzzleHttp\Client;
$client = new Client();
$client->get('https://http2.akamai.com/demo/tile-0.png', [
'version' => 2.0,
'debug' => true,
]);
回答by Norbert
Check out the Apacheand CLIPHP Docker images I built for this purpose that add HTTP/2 support to the official PHP 5.6 docker library. This gets rid of any HTTP/2 client preface string missing or corrupterrors.
查看我为此目的构建的Apache和CLIPHP Docker 映像，这些映像为官方 PHP 5.6 docker 库添加了 HTTP/2 支持。这消除了任何HTTP/2 client preface string missing or corrupt错误。
Once you have the right environment, having tried several JWS/JWT libraries for PHP I only found Spomky-Labs/joseto work perfectly with APNs.
一旦你有了合适的环境，在尝试了几个用于 PHP 的 JWS/JWT 库后，我只发现Spomky-Labs/jose可以与 APNs 完美配合。
