用PHP开发C/S结构_PHP教程

服务器

php

// Server

// 设置错误处理

error_reporting (E_ALL);

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// 设置运行时间

set_time_limit (0);

// 起用缓冲

ob_implicit_flush ();

$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";

$bind = socket_bind ($socket, $ip, $port); // 绑定一个SOCKET

if ($bind)

echo "socket_bind() successed!n";

else

echo "socket_bind() failed:".socket_strerror ($bind)."n";

$listen = socket_listen ($socket); // 间听SOCKET

if ($listen)

echo "socket_listen() successed!n";

else

echo "socket_listen() failed:".socket_strerror ($listen)."n";

while (true)

{

$msg = socket_accept ($socket); // 接受一个SOCKET

if (!$msg)

{

echo "socket_accept() failed:".socket_strerror ($msg)."n";

break;

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}

$welcome = "Welcome to PHP Server!n";

socket_write ($msg, $welcome, strlen ($welcome));

while (true)

{

$command = strtoupper (trim (socket_read ($msg, 1024)));

if (!$command)

break;

switch ($command)

{

case "HELLO":

$writer = "Hello Everybody!";

break;

case "QUIT":

$writer = "Bye-Bye";

break;

case "HELP":

$writer = "HELLOtQUITtHELP";

break;

default:

$writer = "Error Command!";

}

socket_write ($msg, $writer, strlen ($writer));

if ($command == "QUIT")

break;

}

socket_close ($msg);

}

socket_close ($socket); // 关闭SOCKET

?>

客户端

// Client

// 设置错误处理

error_reporting (E_ALL);

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// 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);

?>