用PHP的socket实现客户端到服务端的通信实例详解

时间:2022-11-23 08:26:51

一、server.php服务端:

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<?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);
?>

二、client.php客户端:

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<?php
error_reporting(E_ALL);
//端口111
$service_port = 111;
//本地
$address = 'localhost';
//创建 TCP/IP socket
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if ($socket < 0) {
    echo "socket创建失败原因: " . socket_strerror($socket) . "\n";
} else {
    echo "OK,HE HE.\n";
}
$result = socket_connect($socket, $address, $service_port);
if ($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";
?>

这两段代码是简单介绍用PHP实现客户端和服务端的通信

具体操作,在DOS下用PHP命令打开SERVER,处于监听状态..

再打开一个DOS窗口,用PHP命令打开CLIENT,会得到服务端的回应....

用PHP的socket实现客户端到服务端的通信实例详解

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。