获取IP，地址PHP代码！

<?php
$ip=$_SERVER['REMOTE_ADDR'];
$city=file_get_contents("http://wap.ip138.com/ip_search.asp?ip=$ip");

preg_match_all('!查询结果：(.*)</b>!isU',$city,$ci);
echo "你的ip是:$ip";
echo "来自:".$ci[1][0]."";
?>