<?php//获取用户ip(外网ip 服务器上可以获取用户外网Ip 本机ip地址只能获取127.0.0.1)function getip(){
if(!empty($_SERVER["HTTP_CLIENT_IP"])){
$cip = $_SERVER["HTTP_CLIENT_IP"];
}
else if(!empty($_SERVER["HTTP_X_FORWARDED_FOR"])){
$cip = $_SERVER["HTTP_X_FORWARDED_FOR"];
}
else if(!empty($_SERVER["REMOTE_ADDR"])){
$cip = $_SERVER["REMOTE_ADDR"];
}
else{
$cip = '';
}
preg_match("/[\d\.]{7,15}/", $cip, $cips);
$cip = isset($cips[0]) ? $cips[0] : 'unknown';
unset($cips);
return $cip;
}$ip=getip();
//根据百度地图api得到用户Ip地理经纬度和城市$url = "http://api.map.baidu.com/location/ip?ak=omi69HPHpl5luMtrjFzXn9df&ip=$ip&coor=bd09ll";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($ch);
if(curl_errno($ch))
{ echo 'CURL ERROR Code: '.curl_errno($ch).', reason: '.curl_error($ch);}
curl_close($ch);
$info = json_decode($output, true);
if($info['status'] == "0"){
$lotx = $info['content']['point']['y'];
$loty = $info['content']['point']['x'];
$citytemp = $info['content']['address_detail']['city'];
$keywords = explode("市",$citytemp);
$city = $keywords[0];
}else{
$lotx = "34.2597";
$loty = "108.9471";
$city = "西安";
}var_dump($lotx);//x坐标 纬度
var_dump($loty);//y坐标 经度
var_dump($city);//用户Ip所在城市
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百度地图api新增功能 有时间可以看看
http://developer.baidu.com/map/index.php?title=jspopular