Php与Erlang的Socket通信

-module(server).-export([start/0]).<p></p><p>-define( UINT, 32/unsigned-little-integer).-define( INT, 32/signed-little-integer).-define( USHORT, 16/unsigned-little-integer).-define( SHORT, 16/signed-little-integer).-define( UBYTE, 8/unsigned-little-integer).-define( BYTE, 8/signed-little-integer).</p><p><span>立即学习</span>“<a href="https://pan.quark.cn/s/7fc7563c4182" style="text-decoration: underline !important; color: blue; font-weight: bolder;" rel="nofollow" target="_blank">PHP免费学习笔记（深入）</a>”；</p><p>-define( PORT, 5678).</p><p>%% 启动服务并接受客户端的连接start() ->  {ok, LSock} = gen_tcp:listen(?PORT, [binary, {packet, 0},{active, false}]),  io:format("socket listen: ~p on ~p ~n",[LSock, ?PORT]),  accept(LSock).</p><p>accept(LSock) ->  {ok, ASock} = gen_tcp:accept(LSock),  spawn(fun() -> server_loop(ASock) end),  accept(LSock).</p><p>server_loop(ASock) ->  case gen_tcp:recv(ASock, 0) of    {ok, <<Len:?USHORT,Cmd:?USHORT,Contain:4/binary-unit:8>> = A} ->      io:format("recv data: ~p ~p ~p~n", [Len, Cmd, Contain]),      %%将接收到数据发送回客户端      gen_tcp:send(ASock, A),      server_loop(ASock);    {ok, Data} ->      io:format("recv unformated data: ~p~n", [Data]),      server_loop(ASock);    {error, _} ->      {ok, recv_error}    end.</p>

<?php $timeout = 3; //超时时间：3秒 $fp = fsockopen("tcp://127.0.0.1", 5678, $errno, $errstr, $timeout/* 连接超时时间 */); if (!$fp) { echo "$errstr ($errno)<br />n"; } else { stream_set_timeout($fp, $timeout); //远程数据接收或发送超时时间 $format = "vva4"; $data = pack($format, 4, 10001, "abcd"); //$data 按照一定格式被打包成二进制数据 fwrite($fp, $data); if (!feof($fp)) { $rs = fread($fp, 1024); //读取远程数据 if ($rs) { $len = strlen($rs); //$len 可以获取数据的长度，用以计算content的长度 //在这个例子中，content 的长度为 4 $format = "vlen/vcmd/a4content"; $data = unpack($format, $rs); print_r($data); } else { echo "timeout!"; } } else { echo "timeout!"; } fclose($fp); } ?>

Array ( [len] => 4 [cmd] => 10001 [content] => abcd )