javascript - Geolocation API to detect the user's country? -


i need detect user's country , display data users select countries.

afaik, accurate way using api. 1 ? there's lot of commercial offer, seems bit overkill country (i don't care long/lat or cities)

what accurate way without spending hundreds of dollars yearly ?

use simple php function , information of user's country,city etc. passing ip address of user.. 

    function ip_info($ip = null, $purpose = "location", $deep_detect = true) {         $output = null;         if (filter_var($ip, filter_validate_ip) === false) {             $ip = $_server["remote_addr"];             if ($deep_detect) {                 if (filter_var(@$_server['http_x_forwarded_for'], filter_validate_ip))                     $ip = $_server['http_x_forwarded_for'];                 if (filter_var(@$_server['http_client_ip'], filter_validate_ip))                     $ip = $_server['http_client_ip'];             }         }         $purpose    = str_replace(array("name", "\n", "\t", " ", "-", "_"), null, strtolower(trim($purpose)));         $support    = array("country", "countrycode", "state", "region", "city", "location", "address");         $continents = array(             "af" => "africa",             "an" => "antarctica",             "as" => "asia",             "eu" => "europe",             "oc" => "australia (oceania)",             "na" => "north america",             "sa" => "south america"         );         if (filter_var($ip, filter_validate_ip) && in_array($purpose, $support)) {             $ipdat = @json_decode(file_get_contents("http://www.geoplugin.net/json.gp?ip=" . $ip));             if (@strlen(trim($ipdat->geoplugin_countrycode)) == 2) {                 switch ($purpose) {                     case "location":                         $output = array(                             "city"           => @$ipdat->geoplugin_city,                             "state"          => @$ipdat->geoplugin_regionname,                             "country"        => @$ipdat->geoplugin_countryname,                             "country_code"   => @$ipdat->geoplugin_countrycode,                             "continent"      => @$continents[strtoupper($ipdat->geoplugin_continentcode)],                             "continent_code" => @$ipdat->geoplugin_continentcode                         );                         break;                     case "address":                         $address = array($ipdat->geoplugin_countryname);                         if (@strlen($ipdat->geoplugin_regionname) >= 1)                             $address[] = $ipdat->geoplugin_regionname;                         if (@strlen($ipdat->geoplugin_city) >= 1)                             $address[] = $ipdat->geoplugin_city;                         $output = implode(", ", array_reverse($address));                         break;                     case "city":                         $output = @$ipdat->geoplugin_city;                         break;                     case "state":                         $output = @$ipdat->geoplugin_regionname;                         break;                     case "region":                         $output = @$ipdat->geoplugin_regionname;                         break;                     case "country":                         $output = @$ipdat->geoplugin_countryname;                         break;                     case "countrycode":                         $output = @$ipdat->geoplugin_countrycode;                         break;                 }             }         }         return $output;     }      ?>

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