input('host');
$port = $request->input('port', 22);
$transport = $request->input('transport', 'tcp');
$timeout = $request->input('timeout', 0.5);
if (empty($host)) {
echo "使用方法：";
echo "
";
echo "GET /api/ping?host=www.baidu.com&port=80&transport=tcp&timeout=0.5";
echo "
";
echo "host：检测地址，必传，可以是域名、IPv4、IPv6";
echo "
";
echo "port：检测端口，可不传，默认22";
echo "
";
echo "transport：检测协议，可不传，默认tcp，可以是tcp、udp";
echo "
";
echo "timeout：检测超时，单位秒，可不传，默认0.5秒，建议不超过3秒";
echo "
";
echo "成功返回：1，失败返回：0";
exit();
}
// 如果不是IPv4
if (false === filter_var($host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
// 如果是IPv6
if (filter_var($host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
$host = '[' . $host . ']';
} else {
$host = gethostbyname($host);
}
}
$transport = $transport . '://';
try {
$fp = stream_socket_client($transport . $host . ':' . $port, $errno, $errstr, $timeout);
if (!$fp) {
Log::info("$errstr ($errno)");
$ret = 0;
} else {
$ret = 1;
}
fclose($fp);
return $ret;
} catch (\Exception $e) {
Log::info($e);
return 0;
}
}
}