[PHP] php使用event扩展的io复用测试

先要安装event扩展,这样才可以使用libevent的事件机制

pecl install event

测试代码

//连接重用

//创建资源流的上下文

$context=stream_context_create([

    'socket'=>[

        'backlog'=>2000

    ]]);

stream_context_set_option($context,'socket','so_reuseaddr',1); //设置连接重用

//sock_set_option($this->server, SOL_SOCKET, SO_REUSEADDR, 1); //复用还处于 TIME_WAIT

$socket = stream_socket_server("tcp://0.0.0.0:8070", $errno, $errstr,STREAM_SERVER_BIND | STREAM_SERVER_LISTEN,$context);

stream_set_blocking($socket,false);//非阻塞

//绑定事件

$base=new EventBase();

//监听服务端的socket

$event=new  Event($base,$socket,Event::PERSIST |Event::READ | Event::WRITE,function ($socket)use(&$base){

    $client = stream_socket_accept($socket);

    //stream_set_blocking($client,false);//非阻塞

//        var_dump($client);

//        $content='21335435';

//        $string="HTTP/1.1 200 OK\r\n";

//        $string.="Content-Type: text/html;charset=utf-8\r\n";

//        $string.="Content-Length: ".strlen($content)."\r\n\r\n";

//        fwrite($client,$string.$content);

//        fclose($client);

    //global $base;

    //var_dump($socket,$client);

    $base=new EventBase();

    //监听客户端socket

    $event=new  Event($base,$client,Event::PERSIST |Event::READ | Event::WRITE,function ($client){

        $msg=fread($client,65535);

//

//         if($msg){ //匹配请求头包含了keep-alive

//

//         }

        $content='hello world';

        $string="HTTP/1.1 200 OK\r\n";

        $string.="Content-Type: text/html;charset=utf-8\r\n";

        $string.="Connection: keep-alive\r\n";

        $string.="Content-Length: ".strlen($content)."\r\n\r\n";

        fwrite($client,$string.$content);

        fclose($client);

        //当socket断开连接，删除事件

        $event->del();//删除事件

    });

    $event->add(); //加入事件监听

    $base->loop();

    //监视客户端

    //$event->del();//删除事件

});

$event->add(); //加入事件监听

var_dump($base->loop()); //调度挂起事件监听