用PHP的socket实现客户端到服务端的通信实例详解

2018-09-07 15:17

阅读：281

　　一、server.php服务端：

　　 <?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) { echowhat are you doing?; } $talkback = Backinformation : $buf.\n; socket_write($msgsock, $talkback, strlen($talkback)); echo $buf\n; } while (true); socket_close($msgsock); } while (true); socket_close($sock); ?>

　　二、client.php客户端:

　　 <?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/1.1\r\n; $in .= Connection: Close\r\n\r\n; $out = ; echo Send Command..........; $in = sun\n; socket_write($socket, $in, strlen($in)); echo OK.\n; echo Reading Backinformatin:\n\n; while ($out = socket_read($socket, 2048)) { echo $out; } echo Close socket........; socket_close($socket); echo OK,He He.\n\n; ?>

　　这两段代码是简单介绍用PHP实现客户端和服务端的通信

　　具体操作,在DOS下用PHP命令打开SERVER,处于监听状态..

　　再打开一个DOS窗口,用PHP命令打开CLIENT,会得到服务端的回应....