DNS_GET_RECORD 'www' record?
I am using a PHP script that makes use of dns_get_record to check the A and MX records of domains. The domain is entered via a simple form. However, I'm having some issues adding 'www' to the domain variable.
I would like to add an A Record lookup for www.domain.com. How do I add the www?
<?php
$domain = $_POST["Domain"];
$dns = dns_get_record( $domain, DNS_ANY );
foreach( $dns as $d ) {
// Only print A and MX records
if( $d['type'] != "A" and $d['type'] != "MX" )
continue;
// First print all fields
echo "For " . $d['host'] . ": <br />\n";
// foreach( $d as $key => $value ) {
// if( $key != "host" ) // Don't print host twice
// echo " {$key}: <b>\n {$value}</b>\n <br />\n";
// }
// Print type specific fields
switch( $d['type'] ) {
case 'A':
// Display annoying message
echo "<b>\n" . $d['ip'] . "</b>\n is the Primary A Record for this domain. <br /><br />\n";
break;
case 'MX':
// Resolve IP address of the mail server
$mx = dns_get_record( $d['target'], DNS_A );
foreach( $mx as $server ) {
开发者_开发知识库 echo "The MX record for " . $d['host'] . " points to the server <b>\n" . $d['target'] . "</b>\n whose IP address is <b>\n" . $server['ip'] . "</b>. It has a priority of <b>\n" . $d['pri'] . "</b>\n. <br /><br />\n";
}
if ( $d['target'] == $domain ) {
echo "<i>It looks like the domain is using itself as an MX Record. You will need to create additional records.</i><br /><br />\n";
} else {
echo "<i>This MX Record looks fine.</i><br /><br />\n";
}
break;
}
}
error_reporting(E_ALL);
?>
I would suggest putting the code into a function:
function getDNSRecord($domain) {
$dns = dns_get_record( $domain, DNS_ANY );
foreach( $dns as $d ) {
// Only print A and MX records
if( $d['type'] != "A" and $d['type'] != "MX" )
continue;
// First print all fields
echo "For " . $d['host'] . ": <br />\n";
// foreach( $d as $key => $value ) {
// if( $key != "host" ) // Don't print host twice
// echo " {$key}: <b>\n {$value}</b>\n <br />\n";
// }
// Print type specific fields
switch( $d['type'] ) {
case 'A':
// Display annoying message
echo "<b>\n" . $d['ip'] . "</b>\n is the Primary A Record for this domain. <br /><br />\n";
break;
case 'MX':
// Resolve IP address of the mail server
$mx = dns_get_record( $d['target'], DNS_A );
foreach( $mx as $server ) {
echo "The MX record for " . $d['host'] . " points to the server <b>\n" . $d['target'] . "</b>\n whose IP address is <b>\n" . $server['ip'] . "</b>. It has a priority of <b>\n" . $d['pri'] . "</b>\n. <br /><br />\n";
}
if ( $d['target'] == $domain ) {
echo "<i>It looks like the domain is using itself as an MX Record. You will need to create additional records.</i><br /><br />\n";
} else {
echo "<i>This MX Record looks fine.</i><br /><br />\n";
}
break;
}
}
}
And then call said function twice:
getDNSRecord($_POST['Domain']);
getDNSRecord('www.'.$_POST['Domain']);
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