PHP

Get a Header Attribute of an Attachment

Demonstrates the Chilkat Email.GetAttachmentAttr method, which returns a header-field attribute value from a header field of the Nth attachment. The first argument is the zero-based attachment index, the second names a header field, and the third names an attribute within it. This example reads the filename attribute of the attachment's Content-Disposition header.

Background: A MIME header can have named parameters after its main value, such as Content-Type: text/plain; charset="utf-8"; name="notes.txt". Here charset and name are attributes. GetAttachmentAttr pulls out one named attribute from a chosen header of a specific attachment, sparing you from parsing the raw header string and dealing with quoting or ordering.

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<?php

use Chilkat2\Email;

// Demonstrates the GetAttachmentAttr method, which returns a header-field attribute value
// from a header field of the Nth attachment.  The first argument is the zero-based attachment
// index, the second is the header field name, and the third is the attribute name.

$email = new Email();
$email->Subject = 'Attachment header attribute';

$email->AddStringAttachment('notes.txt', 'Some notes.');

// Get the "filename" attribute of the attachment's Content-Disposition header (index 0).
$fname = $email->GetAttachmentAttr(0, 'Content-Disposition', 'filename');
echo 'Attachment filename attribute: ', $fname, "\n";