PHP Extension

Check if a MIME Part is an Attachment

Demonstrates the Chilkat Mime.IsAttachment method, which returns whether the current part's Content-Disposition is attachment (matched case-insensitively). It takes no arguments.

Note: The file path is relative to the application's current working directory. Absolute paths may also be used. Supply the path to your own file.

Background: Whether a part is an attachment is about disposition, not content type — an image can be inline (Content-Disposition: inline) or an attachment. This predicate keys off that header, which is the right basis for deciding what to list as a downloadable attachment versus what to render within the message body.

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<?php

include("chilkat.php");

$success = false;

//  Demonstrates the Mime.IsAttachment method, which returns whether the part's Content-Disposition is attachment.  It takes no arguments and applies to the current
//  part.  This example iterates the parts of a multipart message and reports which ones match.

$mime = new CkMime();
$success = $mime->LoadMimeFile('qa_data/multipart_message.eml');
if ($success == false) {
    print $mime->lastErrorText() . "\n";
    exit;
}

$n = $mime->get_NumParts();
$part = new CkMime();

for ($i = 0; $i <= $n - 1; $i++) {
    $success = $mime->PartAt($i,$part);
    if ($success == false) {
        print $mime->lastErrorText() . "\n";
        exit;
    }

    if ($part->IsAttachment()) {
        print 'Part ' . $i . ' (' . $part->contentType() . ') is an attachment.' . "\n";
    }

}


?>