DNS Record Lookup

<title>DNS Record Lookup by Yunus Incredibl</title>
<form method="POST">
Hostname : <input type="text" name="hostname" size="50" placeholder="www.site.com" style='border: solid 1px red'>
<br><br>Record : <select style='border: solid 1px red' name='record'>
<?php

/*

DNS Record Lookup

by YunusIncredibl

2014

*/

set_time_limit (0);

$records = array ("A", "CNAME", "MX", "NS", "PTR", "SOA", "TXT", "AAAA", "ALL");

foreach ($records as $record)
    echo "<option>".$record."</option>";

echo '</select><br><br><input type="submit" value="Lookup" name="go"><br></form>';

if (@$_POST['go'])
{
    $host = $_POST['hostname'];
    if (@preg_match ("/:\/\//", $host))
        $host = parse_url ($host, PHP_URL_HOST);
    $rec = $_POST['record'];
    switch ($rec)
    {
    case "A":
        fetch_dns_record ($host, DNS_A);
        break;
    case "CNAME":
        fetch_dns_record ($host, DNS_CNAME);
        break;
    case "MX":
        fetch_dns_record ($host, DNS_MX);
        break;
    case "NS":
        fetch_dns_record ($host, DNS_NS);
        break;
    case "PTR":
        fetch_dns_record ($host, DNS_PTR);
        break;
    case "SOA":
        fetch_dns_record ($host, DNS_SOA);
        break;
    case "TXT":
        fetch_dns_record ($host, DNS_TXT);
        break;
    case "AAAA":
        fetch_dns_record ($host, DNS_AAAA);
        break;
    case "ALL":
        fetch_dns_record ($host, DNS_ALL);
        break;
    default:
        break;
    }
}

function fetch_dns_record ($host, $type)
{
    if (!$record = @dns_get_record ($host, $type))
        die ("DNS Query failed !");
    foreach ($record as $y)
    {
        echo "<br><br>";
        foreach ($y as $x => $k)
            echo $x." : "."$k<br>";
    }
}
?>