PHP实现Socket服务器的代码

<?php
ob_implicit_flush();
set_time_limit(0); $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！
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注，要把：php_sockets.dll　打开

（编辑：李大同）

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