PHP

Zip an Email's Attachments into One File

Demonstrates the Chilkat Email.ZipAttachments method, which replaces all of an email's attachments with a single Zip file attachment having the specified filename. The original attachments are removed and packed into the Zip. This example adds two attachments and zips them into one.

Background: Bundling multiple attachments into a single .zip keeps a message tidy, compresses the payload, and works around recipients or gateways that limit the number of attachments. Note that the filename here (files.zip) names the attachment inside the message — it is not a path on disk. The reverse operation is UnzipAttachments.

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<?php

use Chilkat2\Email;

// Demonstrates the ZipAttachments method, which replaces all of an email's attachments
// with a single Zip file attachment having the specified filename.  The original
// attachments are removed and packed into the Zip.

$email = new Email();
$email->Subject = 'Zip the attachments';

$email->AddStringAttachment('a.txt', 'first attachment');
$email->AddStringAttachment('b.txt', 'second attachment');
echo 'NumAttachments before = ', $email->NumAttachments, "\n";

// Replace all attachments with a single Zip attachment named "files.zip".
try {
    $email->ZipAttachments('files.zip');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo 'NumAttachments after = ', $email->NumAttachments, "\n";