Swoole\Http\Response->trailer
Declaration
<?php
Swoole\Http\Response->trailer(string $key, string $value)
Parameters
- key
The key of HTTP response header
- value
The value of HTTP response header
Return
- Response
Description
Send a HTTP trailer response header to HTTP client. A trailer header is appended to the HTTP body. This can be used for both HTTP 1.1 and HTTP 2 responses.
Example
<?php
$http->on('request', function (Swoole\Http\Request $request, Swoole\Http\Response $response) {
$response->header('trailer', 'Content-MD5');
$data = 'hello world';
$response->write($data);
$response->trailer('Content-MD5', md5($data));
$response->end();
});
HTTP/1.1 200 OK
Content-Type: text/plain
Transfer-Encoding: chunked
Trailer: Expires
7\r\n
Swoole.co.uk\r\n
9\r\n
Developer\r\n
0\r\n
Expires: Wed, 21 Oct 2015 07:28:00 GMT\r\n
\r\n
