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This is a Geo IP Lookup using an API. In this example, we're using my completely free and accurate API. My API Returns JSON, so we will be connecting to my api through curl. Then decode using the "json_decode" function.

I've made this look a little prettier by using Bootstrap 3, for Tables.

    

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" integrity="sha256-MfvZlkHCEqatNoGiOXveE8FIwMzZg4W85qfrfIFBfYc= sha512-dTfge/zgoMYpP7QbHy4gWMEGsbsdZeCXz7irItjcC3sPUFtf0kuFbDz/ixG7ArTxmDjLXDmezHubeNikyKGVyQ==" crossorigin="anonymous">

<div class="container" style="padding-top:50px">

<?php

if(isset($_GET['ip']))

{

	if (!filter_var($_GET['ip'], FILTER_VALIDATE_IP) === false)

	{



		$curl = curl_init();

		curl_setopt_array($curl, array(

		    CURLOPT_RETURNTRANSFER => 1,

		    CURLOPT_URL => 'https://octolus.net/api/geo?ip='.$_GET['ip'],

		    CURLOPT_USERAGENT => 'Opera/9.80 (Windows NT 6.0) Presto/2.12.388 Version/12.14'

		));

		$resp = curl_exec($curl);

		curl_close($curl);



		$decoded = json_decode($resp);



		echo '<table class="table table-bordered">';



		echo '<tr><th>Hostname:</th><td>'.$decoded->{'hostname'}.'</td></tr>';

		echo '<tr><th>Country:</th><td>'.$decoded->{'country_name'}.'</td></tr>';

		echo '<tr><th>Country Code:</th><td>'.$decoded->{'country_code'}.'</td></tr>';

		echo '<tr><th>City:</th><td>'.$decoded->{'city'}.'</td></tr>';

		echo '<tr><th>Postal Code:</th><td>'.$decoded->{'postal_code'}.'</td></tr>';

		echo '<tr><th>Latitude:</th><td>'.$decoded->{'latitude'}.'</td></tr>';

		echo '<tr><th>Longitude:</th><td>'.$decoded->{'longitude'}.'</td></tr>';



		echo '</table>';



	}

}



?>

</div>

And here is what my API Returns:

    {"continent_code":"NA","country_code":"US","country_code3":"USA","country_name":"United States","region":"CA","city":"Mountain View","postal_code":"94040","latitude":37.386001586914,"longitude":-122.08380126953,"dma_code":807,"area_code":650,"ip":"8.8.8.8","hostname":"google-public-dns-a.google.com"}

API doesn't work..

Works for me, are you setting user-agent header?

Yes, i just get a empty response.
Could it be my web server denying it?

Could you specify the headers that it's returning (200 OK, 403, 500 etc). Might be issue on my end.

' null '

Fixed. Make sure to use HTTP instead of HTTPS.

Thanks!

I need to learn php

Still working, also HTTPS works fine.