(PHP ActiveX) Iterate MIME Parts of an Email

Demonstrates how to iterate over the MIME sub-parts of an email, and retrieve the content of each MIME sub-part body.

Note: This example requires some new features added to Chilkat v9.5.0.95.

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

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// See the following Chilkat post to Quickly Understand Email MIME

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

$success = $email->LoadEml('qa_data/eml/sample.eml');
if ($success == 0) {
    print 'Failed to load .eml' . "\n";
    exit;
}

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.StringBuilder')
$sbContentType = new COM("Chilkat.StringBuilder");
$caseSensitive = 0;

// Get the total number of non-multipart MIME sub-parts.
// (This is a simple way of iterating over all the MIME leaf parts regardless of the MIME tree structure)
$inlineOnly = 0;
$excludeAttachments = 0;
$searchSpec = '*/*';

$numParts = $email->GetNumPartsOfType($searchSpec,$inlineOnly,$excludeAttachments);
$i = 0;
while ($i < $numParts) {
    // What is the Content-Type of this MIME part?
    $sbContentType->Append($email->getNthContentType($i,$searchSpec,$inlineOnly,$excludeAttachments));
    if ($sbContentType->StartsWith('text/',$caseSensitive) == 1) {
        // Get the text body of this MIME part.
        $textBody = $email->getNthTextPartOfType($i,$searchSpec,$inlineOnly,$excludeAttachments);
        print 'Got text body for ' . $sbContentType->getAsString() . "\n";
    }
    else {
        if ($sbContentType->ContentsEqual('message/rfc822',$caseSensitive) == 1) {
            // If the Content-Type is message/rfc822, then the MIME body for this part contains a full embedded MIME messages.
            // Your application could load it into a Chilkat email object and recursively process...
            // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Email')
            $attachedEmail = new COM("Chilkat.Email");
            // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.BinData')
            $bdMime = new COM("Chilkat.BinData");
            $email->GetNthBinaryPartOfTypeBd($i,$searchSpec,$inlineOnly,$excludeAttachments,$bdMime);
            $attachedEmail->SetFromMimeBd($bdMime);
            // Now your app can recursively process the attachedEmail...
        }
        else {
            // Get the bytes of this MIME body part.
            // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.BinData')
            $bd = new COM("Chilkat.BinData");
            $email->GetNthBinaryPartOfTypeBd($i,$searchSpec,$inlineOnly,$excludeAttachments,$bd);
            print 'Got binary body for ' . $sbContentType->getAsString() . ' numBytes = ' . $bd->NumBytes . "\n";
        }

    }

    $sbContentType->Clear();
    $i = $i + 1;
}


?>