(PHP Extension) Access Attached Message (Embedded Email)

How to access an email embedded within another email (i.e. an attached message).

Chilkat PHP Downloads PHP Extension for Windows, Linux, MAC OS X, Alpine Linux, Solaris, OpenBSD, FreeBSD, and Linux armhf/aarch64

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

$email = new CkEmail();

// Load an email from a .eml
$success = $email->LoadEml('embeddedEmail.eml');
if ($success != true) {
    print $email->lastErrorText() . "\n";
    exit;
}

// Display how many attached emails are embedded within
// this one:
$numAttached = $email->get_NumAttachedMessages();
print 'numAttached = ' . $numAttached . "\n";

// Get the 1st attached message.

// email2 is a CkEmail
$email2 = $email->GetAttachedMessage(0);
if ($email->get_LastMethodSuccess() == true) {

    // Display the subject, From, and a header field...
    print $email2->subject() . "\n";
    print $email2->from() . "\n";
    print $email2->getHeaderField('X-SOMETHING') . "\n";
}


?>