Check ip address coming from country using php

$json = file_get_contents('http://freegeoip.appspot.com/json/66.102.13.106');
$expression = json_decode($json);
print_r($expression);

stdClass Object
(
    [status] => 1
    [ip] => 66.102.13.106
    [countrycode] => US
    [countryname] => United States
    [regioncode] => CA
    [regionname] => California
    [city] => Mountain View
    [zipcode] => 94043
    [latitude] => 37.4192
    [longitude] => -122.057
)
To get countryname



echo $expression->countryname;
Result



United States