用PHP的socket实现客户端到服务端的通信实例详解

php;"> php error_reporTing(E_ALL); set_time_limit(0); ob_implicit_flush(); //本地IP $address = 'localhost'; //设置用111端口进行通信 $port = 111; //创建SOCKET if (($sock = socket_create(AF_INET,SOCK_STREAM,SOL_TCp)) < 0) { echo "socket创建失败原因 " . socket_strerror($sock) . "\n"; }

if (($ret = sockeT_Bind($sock,$address,$port)) < 0) {
echo "创建套接字失败原因 " . socket_strerror($ret) . "\n";
}
//监听
if (($ret = socket_listen($sock,5)) < 0) {
echo "监听失败原因 " . socket_strerror($ret) . "\n";
}
do {
//接收命令
if (($msgsock = @socket_accept($sock)) < 0) {
echo "命令接收失败原因: " . socket_strerror($msgsock) . "\n";
break;
}
$msg = "\nphp Test Server. \n" ."用quit,shutdown,sun...等命令测试.\n";

@socket_write($msgsock,$msg,strlen($msg));

do {
if (false === ($buf = @socket_read($msgsock,2048,php_NORMAL_READ))) {
echo "socket_read() failed: reason: " . socket_strerror($ret) . "\n";
break 2;
}
if (!$buf = trim($buf)) {
conTinue;
}
if ($buf == 'quit') {
break;
}
if ($buf == 'shutdown') {
socket_close($msgsock);
break 2;
}
if ($buf == 'sun') {
echo'what are you doing?';
}
$talkBACk = "BACkinformation : '$buf'.\n";
socket_write($msgsock,$talkBACk,strlen($talkBACk));
echo "$buf\n";
} while (true);

socket_close($msgsock);

} while (true);

socket_close($sock);
?>

php;"> php error_reporTing(E_ALL); //端口111 $service_port = 111; //本地 $address = 'localhost'; //创建 TCP/IP socket $socket = socket_create(AF_INET,SOL_TCp); if ($socket < 0) { echo "socket创建失败原因: " . socket_strerror($socket) . "\n"; } else { echo "OK，HE HE.\n"; } $result = socket_connect($socket,$service_port); if ($result < 0) { echo "SOCKET连接失败原因: ($result) " . socket_strerror($result) . "\n"; } else { echo "OK.\n"; } //发送命令 $in = "HEAD / HTTP/1.1\r\n"; $in .= "Connection: Close\r\n\r\n"; $out = ''; echo "Send Command.........."; $in = "sun\n"; socket_write($socket,$in,strlen($in)); echo "OK.\n"; echo "Reading Backinformatin:\n\n"; while ($out = socket_read($socket,2048)) { echo $out; } echo "Close socket........"; socket_close($socket); echo "OK,He He.\n\n"; ?>