php中socket的用法详解_php技巧

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<br />error_reporting(E_ALL);<br />set_time_limit(0);<br />//ob_implicit_flush();</p><p>$address = '127.0.0.1';<br />$port = 10005;<br />//创建端口<br />if( ($sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) === false) {<br /> echo "socket_create() failed :reason:" . socket_strerror(socket_last_error()) . "\n";<br />}</p><p>//绑定<br />if (socket_bind($sock, $address, $port) === false) {<br /> echo "socket_bind() failed :reason:" . socket_strerror(socket_last_error($sock)) . "\n";<br />}</p><p>//监听<br />if (socket_listen($sock, 5) === false) {<br /> echo "socket_bind() failed :reason:" . socket_strerror(socket_last_error($sock)) . "\n";<br />}</p><p>do {<br /> //得到一个链接<br /> if (($msgsock = socket_accept($sock)) === false) {<br />  echo "socket_accepty() failed :reason:".socket_strerror(socket_last_error($sock)) . "\n";<br />  break;<br /> }<br /> //welcome  发送到客户端<br /> $msg = "<font color='red'>server send:welcome</font><br />";<br /> socket_write($msgsock, $msg, strlen($msg));<br /> echo 'read client message\n';<br /> $buf = socket_read($msgsock, 8192);<br /> $talkback = "received message:$buf\n";<br /> echo $talkback;<br /> if (false === socket_write($msgsock, $talkback, strlen($talkback))) {<br />  echo "socket_write() failed reason:" . socket_strerror(socket_last_error($sock)) ."\n";<br /> } else {<br />  echo 'send success';<br /> }<br /> socket_close($msgsock);<br />} while(true);<br />//关闭socket<br />socket_close($sock);<br />?>

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<br />//error_reporting(E_ALL);<br />echo "<h2>tcp/ip connection </h2>\n";<br />$service_port = 10005;<br />$address = '127.0.0.1';</p><p>$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);<br />if ($socket === false) {<br /> echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n";<br />} else {<br /> echo "OK. \n";<br />}</p><p><p>4本文￥来源gao!%daima.com搞$代*!码$网9</p><pre>搞代gaodaima码

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。

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