php使用event扩展的io复用测试的示例

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 OKrn';// $string.='Content-Type: text/html;charset=utf-8rn';// $string.='Content-Length: '.strlen($content).'rnrn';// 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 OKrn'; $string.='Content-Type: text/html;charset=utf-8rn'; $string.='Connection: keep-alivern'; $string.='Content-Length: '.strlen($content).'rnrn'; 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

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