php中socket的用法详解

PHP编程$address = '127.0.0.1';
$port = 10005;
//创建端口
if( ($sock = socket_create(AF_INET,SOCK_STREAM,SOL_TCP)) === false) {
?echo "socket_create() failed :reason:" . socket_strerror(socket_last_error()) . "n";
}

PHP编程//绑定
if (socket_bind($sock,$address,$port) === false) {
?echo "socket_bind() failed :reason:" . socket_strerror(socket_last_error($sock)) . "n";
}

PHP编程//监听
if (socket_listen($sock,5) === false) {
?echo "socket_bind() failed :reason:" . socket_strerror(socket_last_error($sock)) . "n";
}

PHP编程do {
?//得到一个链接
?if (($msgsock = socket_accept($sock)) === false) {
??echo "socket_accepty() failed :reason:".socket_strerror(socket_last_error($sock)) . "n";
??break;
?}
?//welcome? 发送到客户端
?$msg = "<font color='red'>server send:welcome</font><br/>";
?socket_write($msgsock,$msg,strlen($msg));
?echo 'read client messagen';
?$buf = socket_read($msgsock,8192);
?$talkback = "received message:$bufn";
?echo $talkback;
?if (false === socket_write($msgsock,$talkback,strlen($talkback))) {
??echo "socket_write() failed reason:" . socket_strerror(socket_last_error($sock)) ."n";
?} else {
??echo 'send success';
?}
?socket_close($msgsock);
} while(true);
//关闭socket
socket_close($sock);
?>

PHP编程$socket = socket_create(AF_INET,SOL_TCP);
if ($socket === false) {
?echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "n";
} else {
?echo "OK. n";
}

PHP编程echo "Attempting to connect to '$address' on port '$service_port'...";
$result = socket_connect($socket,$service_port);
if($result === false) {
?echo "socket_connect() failed.nReason: ($result) " . socket_strerror(socket_last_error($socket)) . "n";
} else {
?echo "OK n";
}
$in = "HEAD / http/1.1rn";
$in .= "HOST: localhost rn";
$in .= "Connection: closernrn";
$out = "";
echo "sending http head request ...";
socket_write($socket,$in,strlen($in));
echo? "OKn";

PHP编程echo "Reading response:nn";
while ($out = socket_read($socket,8192)) {
?echo $out;
}
echo "closeing socket..";
socket_close($socket);
echo "ok .nn";