PHP根据IP判断地区名信息的示例代码

<?php
header("content-type: text/html; charset=utf-8");
function getip(){
if (isset($_server)) {
if (isset($_server[http_x_forwarded_for])) {
$realip = $_server[http_x_forwarded_for];
} elseif (isset($_server[http_client_ip])) {
$realip = $_server[http_client_ip];
} else {
$realip = $_server[remote_addr];
}
} else {
if (getenv("http_x_forwarded_for")) {
$realip = getenv( "http_x_forwarded_for");
} elseif (getenv("http_client_ip")) {
$realip = getenv("http_client_ip");
} else {
$realip = getenv("remote_addr");
}
}
return $realip;
}

$ip = getip();

// 利用新浪接口根据ip查询所在区域信息
/* $res0 = file_get_contents("http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=json&ip=$ip");
$res0 = json_decode($res0);
print_r($res0);
echo "<br />"; */

// 利用淘宝接口根据ip查询所在区域信息
$res1 = file_get_contents("http://ip.taobao.com/service/getipinfo.php?ip=$ip");
$res1 = json_decode($res1);
/* print_r($res1); */

$array = get_object_vars($res1);//赋值给数组
foreach($array as $value){
echo $value->region."<br />";
echo $value->city."<br />";
echo $value->ip."<br />";
}
?>

//或者用对象数据访问 echo $res1->data->city;