PHP实现Socket服务器的代码

$address="192.40.7.93";//换成你自己的地址
$port=10000;

if(($socket=socket_create(AF_INET,SOCK_STREAM,SOL_TCP))==false)
echo"错误(socket_create)：".socket_strerror(socket_last_error())."

";

if(socket_bind($socket,$address,$port)==false)
echo"错误(socket_bind)：".socket_strerror(socket_last_error())."

";

if(socket_listen($socket)==false)
echo"错误(socket_listen)：".socket_strerror(socket_last_error())."

";

/*
Afterthesocketsockethasbeencreatedusingsocket_create()andboundtoanamewithsocket_bind(),
itmaybetoldtolistenforincomingconnectionsonsocket.
*/

while(true){
if(($msgSocket=socket_accept($socket))==false){
echo"错误(socket_accept)：".socket_strerror(socket_last_error())."

";
break;
}

/*
thisfunctionwillacceptincomingconnectionsonthatsocket.
Onceasuccessfulconnectionismade,anewsocketresourceisreturned,whichmaybeusedforcommunication.
Iftherearemultipleconnectionsqueuedonthesocket,thefirstwillbeused.
Iftherearenopendingconnections,socket_accept()willblockuntilaconnectionbecomespresent.
Ifsockethasbeenmadenon-blockingusingsocket_set_blocking()orsocket_set_nonblock(),FALSEwillbereturned.
*/

$msg="Welcome!

";
//socket_write($msg,$msg,strlen($msg));
$command="";

while(true){
if(($buf=socket_read($msgSocket,2048,PHP_BINARY_READ))==false){
echo"错误(socket_read)：".socket_strerror(socket_last_error())."

";
break2;
}

/*
Thefunctionsocket_read()readsfromthesocketresourcesocketcreatedbythesocket_create()orsocket_accept()functions.
Themaximumnumberofbytesreadisspecifiedbythelengthparameter.
Otherwiseyoucanuser,n,ortoendreading(dependingonthetypeparameter,seebelow).
*/

/*
if(!$buf=trim($buf))
continue;//????

if($buf=="quit")
break;

if($buf=="shutdown"){
socket_close($msgSocket);
break2;
}

$tallBack="Yousay:$bufn";
socket_write($msgSocket,$tallBack,strlen($tallBack));
*/

if(ord($buf)!=13)
$command.=$buf;
else{
$command1="YouSay:$commandrn";
socket_write($msgSocket,$command1,strlen($command1));
echo"Usertyped:".$command."

";
$command="";
}
}
socket_close($msgSocket);
}

socket_close($socket);
?>

然后打开CMD，输入：telnet192.40.7.9310000，自己体验去吧！

注，要把：php_sockets.dll打开