PHP获取IP地址输出为数组程序代码

<?php
function getServerIp(){ //用ifconfig读取服务器IP并输出为数组
  $ss = exec('/sbin/ifconfig | sed -n 's/^ *.*addr:\([0-9.]\{7,\}\) .*$/\1/p'',$arr);
  return $arr;
  }
$ips=getServerIp();
 
foreach($ips as $k=>$v){//过滤IP
 if(substr($v,0,3)=='127' || substr($v,0,3)=='10.' || substr($v,0,7)=='192.168' || substr($v,0,6)=='172.16'){
  unset($ips[$k]);
 }
}
shuffle($ips);//重新排序
print_r($ips);
?>

<?php
function GetIP(){
if(!empty($_SERVER["HTTP_CLIENT_IP"])){
  $cip = $_SERVER["HTTP_CLIENT_IP"];
}
elseif(!empty($_SERVER["HTTP_X_FORWARDED_FOR"])){
  $cip = $_SERVER["HTTP_X_FORWARDED_FOR"];
}
elseif(!empty($_SERVER["REMOTE_ADDR"])){
  $cip = $_SERVER["REMOTE_ADDR"];
}
else{
  $cip = "无法获取！";
}
return $cip;
}
echo GetIP();
?>