<?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