PHP ActiveX

Check if a MIME Part is HTML

Demonstrates the Chilkat Mime.IsHtml method, which returns whether the Content-Type is exactly text/html. It takes no arguments and applies to the current part.

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: Finding the HTML part is the common goal when rendering a message richly — it is the formatted version a mail client prefers. In a multipart/alternative you would locate it with this predicate and fall back to the plain-text part when it is absent.

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<?php

$success = 0;

//  Demonstrates the Mime.IsHtml method, which returns whether the Content-Type is text/html.  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 COM("Chilkat.Mime");
$success = $mime->LoadMimeFile('qa_data/multipart_message.eml');
if ($success == 0) {
    print $mime->LastErrorText . "\n";
    exit;
}

$n = $mime->NumParts;
$part = new COM("Chilkat.Mime");

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

    if ($part->IsHtml()) {
        print 'Part ' . $i . ' (' . $part->ContentType . ') is HTML.' . "\n";
    }

}


?>