PHP Extension

Check if a MIME Part is Plain Text

Demonstrates the Chilkat Mime.IsPlainText method, which returns whether the Content-Type is exactly text/plain. 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: Inside a multipart/alternative, this is how you pick out the plain-text rendering — the fallback to show when HTML cannot be displayed, or the version to index for search. It is the specific counterpart to IsHtml.

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<?php

include("chilkat.php");

$success = false;

//  Demonstrates the Mime.IsPlainText method, which returns whether the Content-Type is text/plain.  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->IsPlainText()) {
        print 'Part ' . $i . ' (' . $part->contentType() . ') is plain text.' . "\n";
    }

}


?>