php中socket的用法详解
这篇文章主要介绍了php中socket的用法,详细讲述了PHP进行socket通信的完整步骤,非常具有参考借鉴价值,需要的朋友可以参考下
本文实例详细讲述了php中socket的用法,分享给大家供大家参考。具体用法如下:
一、开启socket
phpinfo();查看是否开启了socket扩展,否则在php.ini中开启。
二、服务器端代码的写法
<?php error_reporting(E_ALL); set_time_limit(0); //ob_implicit_flush();$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"; }
//绑定 if (socket_bind($sock, $address, $port) === false) { echo "socket_bind() failed :reason:" . socket_strerror(socket_last_error($sock)) . "\n"; }
//监听 if (socket_listen($sock, 5) === false) { echo "socket_bind() failed :reason:" . socket_strerror(socket_last_error($sock)) . "\n"; }
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 message\n'; $buf = socket_read($msgsock, 8192); $talkback = "received message:$buf\n"; 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); ?>
服务器端需要在cli模式是执行,有可能cli模式下php.ini文件载入的不一样
可以像如下输出:
这时候在zhoxh目录下就有个tem.text文件。查看 Configuration File (php.ini) Path => C:\WINDOWS 。不是我的php.ini 文件,这说明调用的php.ini文件时错误的。这时候我们要指定php.ini文件命令如下
注意的是我的php可以直接执行时配置了环境变量。
三、客户端
<?php //error_reporting(E_ALL); echo "<h2>tcp/ip connection </h2>\n"; $service_port = 10005; $address = '127.0.0.1';$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); if ($socket === false) { echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n"; } else { echo "OK. \n"; }
echo "Attempting to connect to '$address' on port '$service_port'..."; $result = socket_connect($socket, $address, $service_port); if($result === false) { echo "socket_connect() failed.\nReason: ($result) " . socket_strerror(socket_last_error($socket)) . "\n"; } else { echo "OK \n"; } $in = "HEAD / http/1.1\r\n"; $in .= "HOST: localhost \r\n"; $in .= "Connection: close\r\n\r\n"; $out = ""; echo "sending http head request ..."; socket_write($socket, $in, strlen($in)); echo "OK\n";
echo "Reading response:\n\n"; while ($out = socket_read($socket, 8192)) { echo $out; } echo "closeing socket.."; socket_close($socket); echo "ok .\n\n";
执行结果如下:
server:
client:
希望本文所述对大家的PHP程序设计有所帮助。