PHP Extension

Check if a MIME Entity is multipart/alternative

Demonstrates the Chilkat Mime.IsMultipartAlternative method, which returns whether the Content-Type is exactly multipart/alternative. 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: Recognizing multipart/alternative matters because its children are the same content in different formats — you display one (usually the last renderable), not all of them. That is the opposite of multipart/mixed, where every child is shown.

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<?php

include("chilkat.php");

$success = false;

//  Demonstrates the Mime.IsMultipartAlternative method, which returns whether the Content-Type is multipart/alternative.  It takes no arguments.

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

if ($mime->IsMultipartAlternative()) {
    print 'This is a multipart/alternative entity.' . "\n";
}
else {
    print 'This is not multipart/alternative.' . "\n";
}


?>