function getLocationInfoByIp(){
$client = @$_SERVER['HTTP_CLIENT_IP'];
$forward = @$_SERVER['HTTP_X_FORWARDED_FOR'];
$remote = @$_SERVER['REMOTE_ADDR'];
$result = array('country'=>'', 'city'=>'');
if(filter_var($client, FILTER_VALIDATE_IP)){
$ip = $client;
}elseif(filter_var($forward, FILTER_VALIDATE_IP)){
$ip = $forward;
}else{
$ip = $remote;
}
$ip_data = @json_decode
(file_get_contents("http://www.geoplugin.net/json.gp?ip=".$ip));
if($ip_data && $ip_data->geoplugin_countryName != null){
$result['country'] = $ip_data->geoplugin_countryCode;
$result['country_name'] = $ip_data->geoplugin_countryName;
$result['city'] = $ip_data->geoplugin_city;
}
return $ip.'|'.$result['country_name'].'--'.$result['city'];
}