调用taobao ip库获取用户的地理位置
淘宝IP库: http://ip.taobao.com
/** * 获取用户真实 IP */ function getIP() { static $realip; if (isset($_SERVER)){ if (isset($_SERVER["HTTP_X_FORWARDED_FOR"])){ $realip = $_SERVER["HTTP_X_FORWARDED_FOR"]; } else if (isset($_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"); } else if (getenv("HTTP_CLIENT_IP")) { $realip = getenv("HTTP_CLIENT_IP"); } else { $realip = getenv("REMOTE_ADDR"); } } return $realip; } /** * 获取 IP 地理位置 * 淘宝IP接口 * @Return: array */ function getCity($ip) { $url="http://ip.taobao.com/service/getIpInfo.php?ip=".$ip; $ip=json_decode(file_get_contents($url)); if((string)$ip->code=='1'){ return false; } $data = (array)$ip->data; return $data; }