PHP

Iterate MIME Parts of an Email

See more Email Object Examples

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.

Chilkat2 PHP

<?php

use Chilkat2\BinData;
use Chilkat2\Email;
use Chilkat2\StringBuilder;

// 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

$email = new Email();

try {
    $email->LoadEml('qa_data/eml/sample.eml');
} catch (\Chilkat2\Exception $e) {
    echo "Failed to load .eml\n";
    exit;
}

$sbContentType = new StringBuilder();
$caseSensitive = false;

// 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 = false;
$excludeAttachments = false;
$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)) {
        // Get the text body of this MIME part.
        $textBody = $email->GetNthTextPartOfType($i, $searchSpec, $inlineOnly, $excludeAttachments);
        echo 'Got text body for ', $sbContentType->GetAsString(), "\n";
    } else {
        if ($sbContentType->ContentsEqual('message/rfc822', $caseSensitive)) {
            // 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...
            $attachedEmail = new Email();
            $bdMime = new 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.
            $bd = new BinData();
            $email->GetNthBinaryPartOfTypeBd($i, $searchSpec, $inlineOnly, $excludeAttachments, $bd);
            echo 'Got binary body for ', $sbContentType->GetAsString(), ' numBytes = ', $bd->NumBytes, "\n";
        }
    }

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