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(PHP Extension) Load .eml and Examine the Structure, Attachments, and Related Items

Demonstrates how to load examine the MIME structure of a .eml, and also examine the attachment and related item filenames, attached messages, and multipart/report and DSN information.

Chilkat PHP Downloads

PHP Extension for Windows, Linux, MacOS,
Alpine Linux, Solaris

<?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");

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

$emlPath = 'C:/AAWorkarea/beatrix/roesner.eml';

$mime = new CkMime();

$success = $mime->LoadMimeFile($emlPath);
if ($success != true) {
    print $mime->lastErrorText() . "\n";
    exit;
}

print '---- MIME structure ----' . "\n";
print $mime->getStructure('text') . "\n";
print '------------------------' . "\n";

$email = new CkEmail();
$success = $email->LoadEml($emlPath);

// Was this a signed and/or encrypted email?
// If so, then loading the .eml automatically unwraps
// (i.e. verifies signatures and decrypts) and the resultant
// email is what existed prior to signing/encrypting.
print 'Email was Signed: ' . $email->get_ReceivedSigned() . "\n";
print 'Email was Encrypted: ' . $email->get_ReceivedEncrypted() . "\n";
if ($email->get_ReceivedSigned() == true) {
    print 'Signature(s) valid = ' . $email->get_SignaturesValid() . "\n";
}

if ($email->get_ReceivedEncrypted() == true) {
    print 'Decrypted successfully = ' . $email->get_Decrypted() . "\n";
}

$i = 0;
$numAttach = $email->get_NumAttachments();
print 'Number of attachments = ' . $numAttach . "\n";

while ($i < $numAttach) {
    print '---- Attachment ' . $i . "\n";

    // Examine the filename (if any)
    print 'filename: ' . $email->getAttachmentFilename($i) . "\n";
    // Examine the content-ID (if any)
    print 'Content-ID: ' . $email->getAttachmentContentID($i) . "\n";
    // Examine the content-type
    print 'Content-Type: ' . $email->getAttachmentContentType($i) . "\n";
    // Examine the content-disposition
    print 'Content-Disposition' . $email->getAttachmentHeader($i,'content-disposition') . "\n";
    // Examine the attachment size:
    print 'Size (in bytes) of the attachment: ' . $email->GetAttachmentSize($i) . "\n";

    $i = $i + 1;
}

print '--' . "\n";

// Now for the related items.

// Note: A MIME sub-part can potentially be both a related item AND an attachment.
// The typical case is when the item is contained under the multipart/related enclosure and 
// the item also has a "Content-Disposition" header indicating "attachment".
// The location within multipart/related makes it a "related item", yet the Content-Disposition can also make it semantically an attachment.
// Related items and attachments are not necessarily mutually exclusive.

$numRelated = $email->get_NumRelatedItems();
print 'Number of related items = ' . $numRelated . "\n";
$i = 0;
while ($i < $numRelated) {
    print '---- Related Item ' . $i . "\n";

    // Examine the filename (if any)
    print 'filename: ' . $email->getRelatedFilename($i) . "\n";
    // Examine the content-ID (if any)
    print 'Content-ID: ' . $email->getRelatedContentID($i) . "\n";
    // Examine the content-type
    print 'Content-Type: ' . $email->getRelatedContentType($i) . "\n";
    // Examine the content-location (if any)
    print 'Content-Location' . $email->getRelatedContentLocation($i) . "\n";

    $i = $i + 1;
}

// The email could also have attached messages.
// An attached message is another email that was attached to this email.
$numAttachedMessages = $email->get_NumAttachedMessages();
print 'Number of attached messages = ' . $numAttachedMessages . "\n";
$i = 0;
while ($i < $numAttachedMessages) {
    print '---- Attached message ' . $i . "\n";

    // Examine the attached email
    // em is a CkEmail
    $em = $email->GetAttachedMessage($i);
    print 'from: ' . $em->from() . "\n";
    print 'subject: ' . $em->subject() . "\n";

    $i = $i + 1;
}

// An email could also be a multipart/report email. 
// This is a DSN (Delivery Status Notification)
// The NumReports property indicates how many "reports" exist.
$numReports = $email->get_NumReports();
$i = 0;
print 'Number of reports = ' . $numReports . "\n";
$i = 0;
while ($i < $numReports) {
    print '---- Report ' . $i . "\n";
    // Get the raw report data...
    print $email->getReport($i) . "\n";
    $i = $i + 1;
}

// If the email is a multipart/report, then the information
// from the message/delivery-status part of the email can be retrieved:
if ($email->IsMultipartReport() == true) {

    print '--- Delivery Status Information:' . "\n";
    print 'Status: ' . $email->getDeliveryStatusInfo('Status') . "\n";
    print 'Action: ' . $email->getDeliveryStatusInfo('Action') . "\n";
    print 'Reporting-MTA: ' . $email->getDeliveryStatusInfo('Reporting-MTA') . "\n";

    // sa is a CkStringArray
    $sa = $email->GetDsnFinalRecipients();
    $numFinalRecipients = $sa->get_Count();
    $i = 0;
    while ($i < $numFinalRecipients) {
        print 'final recipient: ' . $sa->getString($i) . "\n";
        $i = $i + 1;
    }

}


?>

 

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