<?php
namespace DoraRPC;

class Common
{
 /**
 * 获取当前服务器ip
 * @return string
 */
 public function getLocalIp()
 {
 static $currentIP;

 if ($currentIP == null) {
 $serverIps = \swoole_get_local_ip();
 $patternArray = array(
 '10\.',
 '172\.1[6-9]\.',
 '172\.2[0-9]\.',
 '172\.31\.',
 '192\.168\.'
 );
 foreach ($serverIps as $serverIp) {
 // 匹配内网IP
 if (preg_match('#^' . implode('|', $patternArray) . '#', $serverIp)) {
 $currentIP = $serverIp;
 return $currentIP;
 }
 }
 } else {
 return $currentIP;
 }

 }
}