How to get User Country, State from IP in PHP

To Get Visitor Details like Country, State, City first we need to get visitor IP Address.

Step 1:

This function obtain the IP address of the visitor.

<?php
         function get_visitor_ip(){
		$ipaddress = '';
		if (getenv('HTTP_CLIENT_IP'))
			$ipaddress = getenv('HTTP_CLIENT_IP');
		else if(getenv('HTTP_X_FORWARDED_FOR'))
			$ipaddress = getenv('HTTP_X_FORWARDED_FOR');
		else if(getenv('HTTP_X_FORWARDED'))
			$ipaddress = getenv('HTTP_X_FORWARDED');
		else if(getenv('HTTP_FORWARDED_FOR'))
			$ipaddress = getenv('HTTP_FORWARDED_FOR');
		else if(getenv('HTTP_FORWARDED'))
			$ipaddress = getenv('HTTP_FORWARDED');
		else if(getenv('REMOTE_ADDR'))
			$ipaddress = getenv('REMOTE_ADDR');
		else
			$ipaddress = 'UNKNOWN';
		
		return $ipaddress;
	}
        $ipaddress= get_visitor_ip(); // Store the IP address

Step 2:

Use API to get Visitor IP Details. Here the geoPlugin API to get the IP details. This API return a JSON response. Use file_get_contents function to call API.

<?php
     $response = file_get_contents('http://www.geoplugin.net/json.gp?   ip='.$ipaddress);
     $data =  @json_decode($response);
     $country = $data->geoplugin_countryName;
     $state = $data->geoplugin_region;
     $latitude = $data->geoplugin_latitude; 
     $longitude = $data->geoplugin_longitude; 
     $currency_symbol =  $data->geoplugin_currencySymbol; 

Output:

Country Name:    United States
State Name:       Alaska
Latitude:        45.8491
Longitude:       -119.7143
Currency Symbol: $