PHP使用event扩展的io复用测试，如何实现长尾词？

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首先安装event扩展，然后使用libevent的事件机制。命令如下：

shellpecl install eventphp test.php // 测试代码

php// 连接重用$context=stream_context_create(['socket'=> ['backlog'=> 2000]]);stream_context_set_option($context, 'socket', ' reuse_addr', true);

php// 创建资源流$context=stream_context_create(['socket'=> ['backlog'=> 2000]]);$stream=stream_socket_server(tcp://0.0.0.0:8080, $errno, $errstr, STREAM_SERVER_BIND | STREAM_SERVER_LISTEN, $context);

php// 资源流上下文$context=stream_context_create(['socket'=> ['backlog'=> 2000]]);stream_context_set_option($context, 'socket', ' reuse_addr', true);$stream=stream_socket_server(tcp://0.0.0.0:8080, $errno, $errstr, STREAM_SERVER_BIND | STREAM_SERVER_LISTEN, $context);

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

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