php socket(fsockopen)函数使用代码

php socket(fsockopen)函数的应用实例

使用fsockopen函数，首先要开启php.ini中的allow_url_open=on;

fsockopen是对socket客户端代码的封装，该函数中封装了socket_create(),socket_connect()。

服务器端代码：server.php

<?php error_reporting(E_ALL);
set_time_limit(0);
$address = "127.0.0.1";
$port = 10008;
//创建端口
if (($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";
}
while (true) {
//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
$msg = "1.<font color=&#039;red&#039;>server send:welcome<br>";
socket_write($msgsock, $msg, strlen($msg)); //返回信息给客户端
echo "read client message\n";
$buf = socket_read($msgsock, 8192); //获取客户端发送过来的信息
$talkback = "2.received message:$buf\n";
echo $talkback;
if (false === socket_write($msgsock, $talkback, strlen($talkback))) { //返回信息给客户端
	echo "socket_write() failed reason:" . socket_strerror(socket_last_error($sock)) ."\n";
} else {
	echo "send success";
}
socket_close($msgsock);
}
socket_close($sock);

客户端代码：fsocket.php

<?php $fp = fsockopen("127.0.0.1", 10008, &$errno, &$errstr, 10);
if (!$fp) {
echo $errstr . " (". $errno . ")<br>n";
} else {
$in = "HEAD / http/1.1\r\n";
$in .= "HOST: localhost \r\n";
$in .= "Connection: close\r\n\r\n";
fputs($fp, $in);
while (!feof($fp)) {
echo fgets($fp, 128);
}
fclose($fp);
}?>