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php tcp socket 学习汇总

Jun 06, 2016 pm 07:47 PM
php socket tcp win study Summary

PHP在WIN下操作socket最好用命令行运行程序,至于为什么,自己可以体会下。 首先运行php + 程序的路径,出现了这个提示表示你的php没有加入环境变量path下面。 然后找到你的php安装目录,我的是这个 然后复制上面的路径,右键点击我的电脑-属性-高级-环境变

PHP在WIN下操作socket最好用命令行运行程序,至于为什么,自己可以体会下。

php tcp socket 学习汇总

首先运行php + 程序的路径,出现了这个提示表示你的php没有加入环境变量path下面。

然后找到你的php安装目录,我的是这个

php tcp socket 学习汇总

然后复制上面的路径,右键点击我的电脑-属性-高级-环境变量,添加到环境变量中,注意有个;号,看下图

php tcp socket 学习汇总

然后确定,保存。再次运行cmd,OK成功了。不会出现那个提示了。

接下来就是主题了,先放代码

php tcp socket 学习汇总

<?php <br />//确保在连接客户端时不会超时<br>set_time_limit(0);<br><br>$ip = '127.0.0.1';<br>$port = 1935;<br><br>/*<br> +-------------------------------<br> *    @socket通信整个过程<br> +-------------------------------<br> *    @socket_create<br> *    @socket_bind<br> *    @socket_listen<br> *    @socket_accept<br> *    @socket_read<br> *    @socket_write<br> *    @socket_close<br> +--------------------------------<br> */<br><br>/*----------------    以下操作都是手册上的    -------------------*/<br>if(($sock = socket_create(AF_INET,SOCK_STREAM,SOL_TCP))     echo "socket_create() 失败的原因是:".socket_strerror($sock)."\n";<br>}<br><br>if(($ret = socket_bind($sock,$ip,$port))     echo "socket_bind() 失败的原因是:".socket_strerror($ret)."\n";<br>}<br><br>if(($ret = socket_listen($sock,4))     echo "socket_listen() 失败的原因是:".socket_strerror($ret)."\n";<br>}<br><br>$count = 0;<br><br>do {<br>    if (($msgsock = socket_accept($sock))         echo "socket_accept() failed: reason: " . socket_strerror($msgsock) . "\n";<br>        break;<br>    } else {<br>        <br>        //发到客户端<br>        $msg ="测试成功!\n";<br>        socket_write($msgsock, $msg, strlen($msg));<br>        <br>        echo "测试成功了啊\n";<br>        $buf = socket_read($msgsock,8192);<br>        <br>        <br>        $talkback = "收到的信息:$buf\n";<br>        echo $talkback;<br>        <br>        if(++$count >= 5){<br>            break;<br>        };<br>        <br>    <br>    }<br>    //echo $buf;<br>    socket_close($msgsock);<br><br>} while (true);<br><br>socket_close($sock);<br>?>
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php tcp socket 学习汇总

这是socket的服务端代码。然后运行cmd,注意是自己的程序存放路径啊。

php tcp socket 学习汇总

没有反映,对现在服务端的程序已经开始运行,端口已经开始监听了。运行netstat -ano可以查看端口情况,我的是1935端口

php tcp socket 学习汇总

看,端口已经处于LISTENING状态了。接下来我们只要运行客户端程序即可连接上。上代码

php tcp socket 学习汇总

<?php <br />error_reporting(E_ALL);<br>set_time_limit(0);<br>echo "<h2 id="TCP-IP-Connection">TCP/IP Connection</h2>\n";<br><br>$port = 1935;<br>$ip = "127.0.0.1";<br><br>/*<br> +-------------------------------<br> *    @socket连接整个过程<br> +-------------------------------<br> *    @socket_create<br> *    @socket_connect<br> *    @socket_write<br> *    @socket_read<br> *    @socket_close<br> +--------------------------------<br> */<br><br>$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);<br>if ($socket     echo "socket_create() failed: reason: " . socket_strerror($socket) . "\n";<br>}else {<br>    echo "OK.\n";<br>}<br><br>echo "试图连接 '$ip' 端口 '$port'...\n";<br>$result = socket_connect($socket, $ip, $port);<br>if ($result     echo "socket_connect() failed.\nReason: ($result) " . socket_strerror($result) . "\n";<br>}else {<br>    echo "连接OK\n";<br>}<br><br>$in = "Ho\r\n";<br>$in .= "first blood\r\n";<br>$out = '';<br><br>if(!socket_write($socket, $in, strlen($in))) {<br>    echo "socket_write() failed: reason: " . socket_strerror($socket) . "\n";<br>}else {<br>    echo "发送到服务器信息成功!\n";<br>    echo "发送的内容为:<font color="red">$in</font> <br>";<br>}<br><br>while($out = socket_read($socket, 8192)) {<br>    echo "接收服务器回传信息成功!\n";<br>    echo "接受的内容为:",$out;<br>}<br><br><br>echo "关闭SOCKET...\n";<br>socket_close($socket);<br>echo "关闭OK\n";<br>?>
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php tcp socket 学习汇总

php tcp socket 学习汇总


至此客户端已经连接上服务端了。这只是个小例子,很多东西知道原理其他就好做了。

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