PHP class to Create XML Documents

<?php

    class xmldoc {

        function build($name = 'index') {

            $dom = new DOMDocument("1.0");
            $dom->formatOutput = true;
            $root = $dom->createElement($name);
            $dom->appendChild($root);

            return array($root, $dom);
        }

        function add($xmlObject, $parent, $field, $value = false, $textNode = false) {

            $dom = $xmlObject[1];

            $field = $dom->createElement($field);
            $parent->appendChild($field);

            if ($value !== false) {


                $text = ($textNode !== false ? $dom->createTextNode($value) : $dom->createCDATASection($value));
                $field->appendChild($text);
            }

            return $field;
        }

        function attr($xmlObject, $field, $name, $text) {

            $dom = $xmlObject[1];

            $name = $dom->createAttribute($name);
            $field->appendChild($name);

            $value = $dom->createTextNode($text);
            $name->appendChild($value);
        }

        function save($xmlObject, $path, $save = true) {

            $dom = $xmlObject[1];

            echo $dom->saveXML();

            if ($save === true) {

                echo "Wrote to {$path}, " . $dom->save($path) . " bytes.\n" . date('r', time()) . "\n";
            }
        }
    }

    /* Example usage

    $xmlPath = '/path/to/doc/';

    $xmltool = new xmldoc();
    $xmlObject = $xmltool->build('info');
    $root = $xmlObject[0];

    $client = $xmltool->add($xmlObject, $root, 'client');
    $xmltool->add($xmlObject, $client, 'name', 'John');
    $xmltool->add($xmlObject, $client, 'age', 21, true);
    $height = $xmltool->add($xmlObject, $client, 'height', '6.0');
    $xmltool->attr($xmlObject, $height, 'unit', 'feet');

    $xmltool->save($xmlObject, $xmlPath . 'info.xml', false);

    Output:

    <?xml version="1.0"?>
    <info>
      <client>
        <name><![CDATA[John]]></name>
        <age>21</age>
        <height unit="feet"><![CDATA[6.0]]></height>
      </client>
    </info>

    */