EventHttp::__construct

(PECL event >= 1.2.6-beta)

EventHttp::__construct — Constructs 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.

Note:

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

返回值

Returns EventHttp object.

更新日志

版本	说明
1.9.0	OpenSSL support (`ctx`) added.

范例

Example #1 Simple HTTP server

  <?php
 

 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 ();
 ?>

以上例程的输出类似于：

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

用户评论:

[#1] Bas Vijfwinkel [2015-06-26 09:22:37]

If you try to use the SSL context parameter and you receive an error that you're using 2 parameters instead of 1, then your libevent library is not recent enough to support all features.
When installing the event extension with PECL, the libevent library needs a certain version to support certain functions.
PECL does not show any errors or warnings but simple disables everything that your libevent version does not support.

For further details see my comment at
http://php.net/manual/en/event.examples.php

[#2] Anonymous [2015-03-06 11:47:42]

This demo code has a memory leak