Get user's ISP, country and city by ip? - ip

Question

How to get user's ISP, country and city by ip without any other service. I looked in some solutions with whatismyipaddress.com but they don't allow anymore http://whatismyipaddress.com/ip/194.153.145.104 by curl it returns - You appear to be an automated script. Site terms and conditions do not allow for automated/script access. For API details see http://whatismyipaddress.com/api
And their API don't allow to get Geolocation data. Here is what i have tested:
$ip='194.153.145.104';
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, 'http://whatismyipaddress.com/ip/' . $ip);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);
$data = explode("\n", curl_exec($curl));
$isp = null;
$country = null;
$city = null;
$MaxIndex = count($data) - 1;
for ($i = 0; $i < $MaxIndex; $i++){
if (strpos($data[$i], '<th>ISP:</th>') !== false){
$isp = str_replace('<td>', '', $data[$i + 1]);
$isp = str_replace('</td>', '', $isp);
break;
}
if (strpos($data[$i], '<th>Country:</th>') !== false){
$country = str_replace('<td>', '', $data[$i + 1]);
$country = str_replace('</td>', '', $country);
break;
}
if (strpos($data[$i], '<th>City:</th>') !== false){
$city = str_replace('<td>', '', $data[$i + 1]);
$city = str_replace('</td>', '', $city);
break;
}
}
print_r($data);
echo "ISP: ".$isp."<br />Country: ".$country."<br />City: ".$city;

Answer 1

They probably check if the User-Agent header in the request is that of a valid Browser.
Add this to your script and it should work:
curl_setopt($curl,CURLOPT_USERAGENT,'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.13) Gecko/20080311 Firefox/2.0.0.13');