PHP Extension

Resolve Domain to IP Address

See more DNS Examples

Demonstrates how to perform a DNS query to obtain A records for resolving a domain name to an IPv4 address. PHP Extension

<?php

include("chilkat.php");

$success = false;

$dns = new CkDns();

$json = new CkJsonObject();
$json->put_EmitCompact(false);

$success = $dns->Query('A','microsoft.com',$json);
if ($success == false) {
    print $dns->lastErrorText() . "\n";
    exit;
}

print $json->emit() . "\n";

// Sample response.
// Parsing code below..

// {
//   "answer": {
//     "a": [
//       {
//         "name": "microsoft.com",
//         "ttl": 1528,
//         "ipv4": "20.112.250.133"
//       },
//       {
//         "name": "microsoft.com",
//         "ttl": 1528,
//         "ipv4": "20.231.239.246"
//       },
//       {
//         "name": "microsoft.com",
//         "ttl": 1528,
//         "ipv4": "20.76.201.171"
//       },
//       {
//         "name": "microsoft.com",
//         "ttl": 1528,
//         "ipv4": "20.70.246.20"
//       },
//       {
//         "name": "microsoft.com",
//         "ttl": 1528,
//         "ipv4": "20.236.44.162"
//       }
//     ]
//   }
// }

// Use this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON

$i = 0;
$count_i = $json->SizeOfArray('answer.a');
while ($i < $count_i) {
    $json->put_I($i);
    $name = $json->stringOf('answer.a[i].name');
    $ttl = $json->IntOf('answer.a[i].ttl');
    $ipv4 = $json->stringOf('answer.a[i].ipv4');
    $i = $i + 1;
}


?>