PHP

Check if a MIME Part is XML

Demonstrates the Chilkat Mime.IsXml method, which returns true only for text/xml or application/xml. 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: Identifying an XML part matters in machine-to-machine messaging — SOAP, EDI, structured data payloads — where you want to hand the body to an XML parser. Note it matches only the two canonical XML media types and not structured-suffix types like application/xhtml+xml, so check the exact type when those are relevant.

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<?php

use Chilkat2\Mime;

// Demonstrates the Mime.IsXml method, which returns whether the Content-Type is text/xml or application/xml.  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->IsXml()) {
        echo 'Part ', $i, ' (', $part->ContentType, ") is XML.\n";
    }
}