有时候阳光很好，有时候阳光很暗，这就是生活。不就应迫求一切种类的快乐，就应只追求高尚的快乐。
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
以上就是php使用event扩展的io复用测试的示例的详细内容，更多关于php io复用测试的资料请关注其它相关文章！
