php中socket的使用

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

<?phperror_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socketsocket_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： 

server:

client: