关于php的socket

<?php
/**
* 测试关于php的socket函数
*/
/**
* 最基本的socket,服务器端:
* 创建
* $sock = socket_create(AF_INET,SOCK_STREAM,SOL_TCP);
* 绑定
* socket_bind($sock,'127.0.0.1');
* 监听
* socket_listen($sock,5);
* 得到连接
* $msgSock = socket_accept($sock);
* socket_write();
* socket_read();
*/
$address = '127.0.0.1';
$port = 12345;
if(($sock = socket_create(AF_INET, SOCK_STREAM, getprotobyname('tcp')))===false)
{
echo "socket create failed ".socket_strerror(socket_last_error())."\r\n";
}
//绑定
if(socket_bind($sock,$address,$port) === false)
{
echo 'socket bind failed '.socket_strerror(socket_last_error())."\r\n";
}
//监听
if(socket_listen($sock,10) === false)
{
echo 'socket listen failed '.socket_strerror(socket_last_error())."\r\n";
}
do
{
$msgSock = socket_accept($sock);
if($msgSock === false)
{
echo 'socket accept failed '.socket_strerror(socket_last_error())."\r\n";
break;
}
//发送到客户端
$msg = "server连接成功了!\r\n";
socket_write($msgSock,$msg,strlen($msg));
//读从客户端接收的数据
$reciveMsg = socket_read($msgSock,8192);
echo "reciveed msg is: ".$reciveMsg."\r\n";
socket_close($msgSock);
}while(true);

socket_close($sock);

<?php
/**
* 关于客户端的socket
*/
/**
* 函数
* socket_create();
* socket_connect();
* socket_write();
* socket_read();
*/
$address = '127.0.0.1';
$port = 12345;
$sock = socket_create(AF_INET,SOCK_STREAM,SOL_TCP);
if($sock === false)
{
echo "socket create failed ".socket_strerror(socket_last_error())."\r\n";
}
echo "attempt to connect server...\r\n";
$result = socket_connect($sock,$address,$port);
if($result === false)
{
echo "socket connect failed ".socket_strerror(socket_last_error())."\r\n";
}
echo 'connect to server ..'."\r\n";
$msg = "client connect success\r\n";
socket_write($sock,$msg,strlen($msg));
while($out = socket_read($sock,8192))
{
echo $out."\r\n";
}
echo "close socket ..\r\n";
socket_close($sock);