(PHP ActiveX) Transition from MailMan.MxLookup to Dns.Query

Provides instructions for replacing deprecated MxLookup method calls with the Chilkat Dns class.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.MailMan')
$mailman = new COM("Chilkat.MailMan");

// ...
// ...

$emailAddr = 'joe@example.com';

// ------------------------------------------------------------------------
// The MxLookup method is deprecated:

$domain = $mailman->mxLookup($emailAddr);
if ($mailman->LastMethodSuccess == 0) {
    print $mailman->LastErrorText . "\n";
    exit;
}

// ------------------------------------------------------------------------
// Do the equivalent using the Chilkat DNS class

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Dns')
$dns = new COM("Chilkat.Dns");

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.JsonObject')
$json = new COM("Chilkat.JsonObject");

// This gets all MX domains for an email address.  (Typically one domain.)
// The preferred domain will be at index 0 (see below).
$success = $dns->Query('MX',$emailAddr,$json);
if ($success == 0) {
    print $dns->LastErrorText . "\n";
    exit;
}

$i = 0;
$count_i = $json->SizeOfArray('answer.mx');
while ($i < $count_i) {
    $json->I = $i;
    $domain = $json->stringOf('answer.mx[i].domain');
    print $domain . "\n";
    $i = $i + 1;
}


?>