PHP

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

use Chilkat2\Mime;

// 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 Mime();
try {
    $mime->LoadMimeFile('qa_data/multipart_message.eml');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

$n = $mime->NumParts;
$part = new Mime();
for ($i = 0; $i < $n; $i++) {
    try {
        $mime->PartAt($i, $part);
    } catch (\Chilkat2\Exception $e) {
        echo $e->getMessage(), "\n";
        exit;
    }

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