<?php
/**
* 客户端代码
*/
error_reporting(0);
set_time_limit(0);
echo ” TCP/IP Connection \n”;
$service_port = 10001;
$address = “127.0.0.1″;
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if ($socket === false)
{
echo “socket_create() failed: reason: ” . socket_strerror(socket_last_error()) . “\n”;
die;
}
else
{
echo “OK.\n”;
}
echo “试图连接 ‘{$address}’ 端口 ‘{$service_port}’…\n”;
if (socket_connect($socket, $address, $service_port) == false)
{
$error = socket_strerror(socket_last_error());
echo “socket_connect() failed.\n”,”Reason: {$error} \n”;
die;
}
else
{
echo “连接OK\n”;
}
$in = “Hello World\r\n”;
if (socket_write($socket, $in, strlen($in)) === false)
{
echo “socket_write() failed: reason: ” . socket_strerror(socket_last_error()) .”\n”;
die;
}
else
{
echo “发送到服务器信息成功！\n”,”发送的内容为: $in \n”;
}
$out = ”;
while ($out = socket_read($socket, 8192))
{
echo “接收服务器回传信息成功！\n”,”接受的内容为:”, $out;
}
echo “关闭SOCKET…\n”;
socket_close($socket);
echo “关闭OK\n”;
?>
<?php
/**
* 服务器端代码
*
*/
//确保在连接客户端时不会超时
set_time_limit(0);
//设置IP和端口号
$address = ’127.0.0.1′;
$port = 10001; //调试的时候，可以多换端口来测试程序！
//创建一个SOCKET
if (($sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) === false)
{
echo “socket_create() 失败的原因是:” . socket_strerror(socket_last_error()) . “\n”;
die;
}
//阻塞模式
if (socket_set_block($sock) == false)
{
echo “socket_set_block() 失败的原因是:” . socket_strerror(socket_last_error()) . “\n”;
die;
}
//绑定到socket端口
if (socket_bind($sock, $address, $port) == false)
{
echo “socket_bind() 失败的原因是:” . socket_strerror(socket_last_error()) . “\n”;
die;
}
//开始监听
if (socket_listen($sock, 4) == false)
{
echo “socket_listen() 失败的原因是:” . socket_strerror(socket_last_error()) . “\n”;
die;
}
do
{
if (($msgsock = socket_accept($sock)) === false)
{
echo “socket_accept() failed: reason: ” . socket_strerror(socket_last_error()) . “\n”;
die;
}
//发到客户端
$msg = “welcome \n”;
if (socket_write($msgsock, $msg, strlen($msg)) === false)
{
echo “socket_write() failed: reason: ” . socket_strerror(socket_last_error()) .”\n”;
die;
}
echo “读取客户端发来的信息\n”;
$buf = socket_read($msgsock, 8192);
echo “收到的信息: $buf \n”;
socket_close($msgsock);
} while (true);
socket_close($sock);
?>