(PHP Extension) AddAttribute - Insert New Attribute in an XML Node

Demonstrates adding an name=value attribute to an XML element.

This example uses the XML sample file here: sample1.xml. The sample1.xml file contains this content:

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<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

$xml = new CkXml();

$success = $xml->LoadXmlFile('qa_data/xml/sample1.xml');
if ($success != true) {
    print $xml->lastErrorText() . "\n";
    exit;
}

// Navigate to the "books" element:
$bFound = $xml->FindChild2('books');
if ($bFound == false) {
    print 'No books child found!' . "\n";
    exit;
}

$numChildren = $xml->get_NumChildren();

$i = 0;
while ($i < $numChildren) {

    // Navigate to the Nth book 
    $xml->GetChild2($i);

    // Display the book title:
    print $xml->getAttrValue('title') . "\n";

    // Add a new integer attribute:
    // Should never fail..
    $xml->AddAttributeInt('bookId',$i);

    // Add a new unread="yes" attribute:
    $xml->AddAttribute('unread','yes');

    // Navigate back up to the parent:
    $xml->GetParent2();

    $i = $i + 1;
}

// Navigate back to the document root:
$xml->GetRoot2();

// Save the updated document:
$success = $xml->SaveXml('modified.xml');
if ($success != true) {
    print $xml->lastErrorText() . "\n";
    exit;
}

print $xml->getXml() . "\n";

?>