EventHttp::__construct

(PECL event >= 1.2.6-beta)

EventHttp::__constructConstructs EventHttp object (the HTTP server)

说明

public EventHttp::__construct( EventBase $base , EventSslContext $ctx = null )

Constructs the HTTP server object.

参数

base

Associated event base.

ctx

EventSslContext class object. Turns plain HTTP server into HTTPS server. It means that if ctx is configured correctly, then the underlying buffer events will be based on OpenSSL sockets. Thus, all traffic will pass through the SSL or TLS.

注意:

This parameter is available only if Event is compiled with OpenSSL support and only with Libevent 2.1.0-alpha and higher.

更新日志

版本 说明
PECL event 1.9.0 OpenSSL support (ctx) added.

示例

示例 #1 Simple HTTP server

<?php
/*
* Simple HTTP server.
*
* To test it:
* 1) Run it on a port of your choice, e.g.:
* $ php examples/http.php 8010
* 2) In another terminal connect to some address on this port
* and make GET or POST request(others are turned off here), e.g.:
* $ nc -t 127.0.0.1 8010
* POST /about HTTP/1.0
* Content-Type: text/plain
* Content-Length: 4
* Connection: close
* (press Enter)
*
* It will output
* a=12
* HTTP/1.0 200 OK
* Content-Type: text/html; charset=ISO-8859-1
* Connection: close
*
* $ nc -t 127.0.0.1 8010
* GET /dump HTTP/1.0
* Content-Type: text/plain
* Content-Encoding: UTF-8
* Connection: close
* (press Enter)
*
* It will output:
* HTTP/1.0 200 OK
* Content-Type: text/html; charset=ISO-8859-1
* Connection: close
* (press Enter)
*
* $ nc -t 127.0.0.1 8010
* GET /unknown HTTP/1.0
* Connection: close
*
* It will output:
* HTTP/1.0 200 OK
* Content-Type: text/html; charset=ISO-8859-1
* Connection: close
*
* 3) See what the server outputs on the previous terminal window.
*/

function _http_dump($req, $data) {
static
$counter = 0;
static
$max_requests = 2;

if (++
$counter >= $max_requests) {
echo
"Counter reached max requests $max_requests. Exiting\n";
exit();
}

echo
__METHOD__, " called\n";
echo
"request:"; var_dump($req);
echo
"data:"; var_dump($data);

echo
"\n===== DUMP =====\n";
echo
"Command:", $req->getCommand(), PHP_EOL;
echo
"URI:", $req->getUri(), PHP_EOL;
echo
"Input headers:"; var_dump($req->getInputHeaders());
echo
"Output headers:"; var_dump($req->getOutputHeaders());

echo
"\n >> Sending reply ...";
$req->sendReply(200, "OK");
echo
"OK\n";

echo
"\n >> Reading input buffer ...\n";
$buf = $req->getInputBuffer();
while (
$s = $buf->readLine(EventBuffer::EOL_ANY)) {
echo
$s, PHP_EOL;
}
echo
"No more data in the buffer\n";
}

function
_http_about($req) {
echo
__METHOD__, PHP_EOL;
echo
"URI: ", $req->getUri(), PHP_EOL;
echo
"\n >> Sending reply ...";
$req->sendReply(200, "OK");
echo
"OK\n";
}

function
_http_default($req, $data) {
echo
__METHOD__, PHP_EOL;
echo
"URI: ", $req->getUri(), PHP_EOL;
echo
"\n >> Sending reply ...";
$req->sendReply(200, "OK");
echo
"OK\n";
}

$port = 8010;
if (
$argc > 1) {
$port = (int) $argv[1];
}
if (
$port <= 0 || $port > 65535) {
exit(
"Invalid port");
}

$base = new EventBase();
$http = new EventHttp($base);
$http->setAllowedMethods(EventHttpRequest::CMD_GET | EventHttpRequest::CMD_POST);

$http->setCallback("/dump", "_http_dump", array(4, 8));
$http->setCallback("/about", "_http_about");
$http->setDefaultCallback("_http_default", "custom data value");

$http->bind("0.0.0.0", 8010);
$base->loop();
?>

以上示例的输出类似于:

a=12
HTTP/1.0 200 OK
Content-Type: text/html; charset=ISO-8859-1
Connection: close

HTTP/1.0 200 OK
Content-Type: text/html; charset=ISO-8859-1
Connection: close
(press Enter)

HTTP/1.0 200 OK
Content-Type: text/html; charset=ISO-8859-1
Connection: close