fsockopen函数能够运用，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
复制代码 代码如下:
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
$msg = 1.server send:welcome
;
socket_write($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
复制代码 代码如下:
$fp = fsockopen(127.0.0.1, 10008, &$errno, &$errstr, 10);
if (!$fp) {
echo $errstr . (. $errno . )
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);
}
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