php中socket的用法详解

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

代码如下:

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 $msg = "server send:welcome
"; socket_write($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

代码如下:

PHP //error_reporting(E_ALL); echo "

TCP/IP connection

\n"; $service_port = 10005; $address = '127.0.0.1';

$socket = socket_create(AF_INET,SOL_TCP); if ($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,$service_port); if($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。

原文地址：https://www.jb51.cc/php/23634.html