想用php来做socket服务,因为http协议效率实在太低了

网上找来代码,调试好之后,发现即使能两个客户端同时连接上,服务端在处理一个客户端请求时
另外一个客户端的请求被阻塞了,只有等到前一个客户端的事情处理完了,后一个客户端的请求才会被响应!

server.php

PHP code

<?php $addr = "127.0.0.1"; $port = 1000; $remoteIP = ""; $remotePort = ""; $socket = socket_create(AF_INET,SOCK_STREAM,SOL_TCP); if($socket < 0) { echo "Socket create:".$socket_strerror($socket)."/n"; exit; } if ( ($ret = socket_bind($socket, $addr, $port)) < 0 ) { echo "socket bind:".socket_strerror()."/n"; exit; } if ( ($ret = socket_listen($socket, 5)) < 0 ) { echo "socket listen:".socket_strerror()."/n"; exit; } socket_set_nonblock($socket); echo "Wainting fro a connection:/n"; $clients = array($socket); while(true) { $read = $clients; if(socket_select($read, $writes=NULL, $execs=NULL, 3) < 1){ //echo "."; continue; } if(in_array($socket,$read)) { $clients[] = $newsock = socket_accept($socket); socket_set_nonblock($newsock); socket_getpeername($newsock,&$remoteIP,&$remotePort); $key = array_search($socket,$read); unset($read[$key]); $msg = "Server: $addr/r/n". "Notice:Welcome the user from ".$remoteIP.":".$remotePort."./r/n"; echo $remoteIP.":".$remotePort." conected in./r/n"; socket_write($newsock,$msg); } foreach($read as $read_sock) { $data = @socket_read($read_sock,1024,PHP_BINARY_READ); if($data == false) { $key = array_search($read_sock,$clients); print_r($clients[$key]); unset($clients[$key]); socket_close($read_sock); echo "Client disconnected./n"; continue; } $command = strtoupper ($data); switch ($command) { case "LIST": $writer = print_r($clients,1); break; case "HELLO": $writer = "Hello Everybody!"; break; case "QUIT": $writer = "Bye-Bye"; break; case "SLEEP": sleep(30); $writer = "sleeped 10 seconds!"; break; case "HELP": $writer = "HELLO/tQUIT/tHELP"; break; default: $writer = "Error Command!/r/nType help for help message!"; } socket_write($read_sock, $writer); //exit; } } socket_close($socket); ?>

client.php

PHP code

<?php // Client // 设置错误处理 error_reporting (E_ALL); // 设置处理时间 set_time_limit (0); $ip = "127.0.0.1"; // IP 地址 $port = 1000; // 端口号 $socket = socket_create (AF_INET, SOCK_STREAM, SOL_TCP); // 创建一个SOCKET if ($socket) echo "socket_create() successed!/n"; else echo "socket_create() failed:".socket_strerror ($socket)."/n"; $conn = socket_connect ($socket, $ip, $port); // 建立SOCKET的连接 if ($conn) echo "Success to connection![".$ip.":".$port."]/n"; else echo "socket_connect() failed:".socket_strerror ($conn)."/n"; echo socket_read ($socket, 1024); $stdin = fopen ('php://stdin', 'r'); while (true) { $command = trim (fgets ($stdin, 1024)); socket_write ($socket, $command, strlen ($command)); $msg = trim (socket_read ($socket, 1024)); echo $msg."/n"; if ($msg == "Bye-Bye") break; } fclose ($stdin); socket_close ($socket); ?>

第一个客户端连接上后输入命令sleep,迫使服务器端持续处理第一个客户端的请求,第二个客户端连接能成功连接,但是得不到响应,如果不使用sleep,两个客户端看起来都能和服务器端正常通讯,不知道谁有办法解决这个问题没有.