【socket】用PHP的socket实现客户端到服务端的通信

一、server.php服务端：

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<?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 "$buf\n";

} while (true);

socket_close($msgsock);

} while (true);

socket_close($sock);

?>

二、client.php客户端:

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<?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

client.php

server.php

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....