通过ip138获取ip真实地址

相比用一些地址字典好很多，毕竟自己的字典不可能经常更新
通过ip138获取ip真实地址/*
$pro 使用（sina,ip138）可选
*/
public function get_ip_address($ip,$pro='ip138')
{
$ip_address = '';
if($ip == '127.0.0.1')
{
$ip_address = '本机 127.0.0.1';
}else if($pro=='ip138')
{

$url = 'http://www.ip138.com/ips138.asp?ip='.$ip;
$content = file_get_contents($url );
preg_match("/

• [\s|\S]*?/",$content,$matches);
  $ip_address = iconv('gbk','utf-8',$matches[0]);
  
  }else
  {
  $url = 'http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js&ip='.$ip;
  $content = file_get_contents($url );
  $content = str_replace('var remote_ip_info =', '', $content);
  $content = rtrim($content,';');
  $content = trim($content);
  $content = json_decode($content,true);
  if($content)
  {
  $ip_address = $content['country'].' '.$content['province'].' '.$content['city'].' '.$content['district'].' '.$content['isp'].' '.$content['type'].' '.$content['desc'];
  }
  
  }
  return $ip_address;
  }

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