用PHP的socket实现客户端到服务端的通信实例详解

<?php error_reporting(e_all); set_time_limit(0); ob_implicit_flush(); //本地ip $address = 'localhost'; //设置用111端口进行通信 $port = 111; //创建socket if (($sock = socket_create(af_inet, sock_stream, sol_tcp)) < 0) { echo "socket创建失败原因 " . socket_strerror($sock) . "n"; } if (($ret = socket_bind($sock, $address, $port)) < 0) { echo "创建套接字失败原因 " . socket_strerror($ret) . "n"; } //监听 if (($ret = socket_listen($sock, 5)) < 0) { echo "监听失败原因 " . socket_strerror($ret) . "n"; } do { //接收命令 if (($msgsock = @socket_accept($sock)) < 0) { echo "命令接收失败原因: " . socket_strerror($msgsock) . "n"; break; } $msg = "nphp test server. n" ."用quit,shutdown,sun...等命令测试.n"; @socket_write($msgsock, $msg, strlen($msg)); do { if (false === ($buf = @socket_read($msgsock, 2048, php_normal_read))) { echo "socket_read() failed: reason: " . socket_strerror($ret) . "n"; break 2; } if (!$buf = trim($buf)) { continue; } if ($buf == 'quit') { break; } if ($buf == 'shutdown') { socket_close($msgsock); break 2; } if ($buf == 'sun') { echo'what are you doing?'; } $talkback = "backinformation : '$buf'.n"; socket_write($msgsock, $talkback, strlen($talkback)); echo "$bufn"; } while (true); socket_close($msgsock); } while (true); socket_close($sock); ?>

<?php error_reporting(e_all); //端口111 $service_port = 111; //本地 $address = 'localhost'; //创建 tcp/ip socket $socket = socket_create(af_inet, sock_stream, sol_tcp); if ($socket < 0) { echo "socket创建失败原因: " . socket_strerror($socket) . "n"; } else { echo "ok，he he.n"; } $result = socket_connect($socket, $address, $service_port); if ($result < 0) { echo "socket连接失败原因: ($result) " . socket_strerror($result) . "n"; } else { echo "ok.n"; } //发送命令 $in = "head / http/1.1rn"; $in .= "connection: closernrn"; $out = ''; echo "send command.........."; $in = "sunn"; socket_write($socket, $in, strlen($in)); echo "ok.n"; echo "reading backinformatin:nn"; while ($out = socket_read($socket, 2048)) { echo $out; } echo "close socket........"; socket_close($socket); echo "ok,he he.nn"; ?>