<?php

// include xml lib
include_once '../lib.xml.inc.php';
// create new xml object
$xml = new XML();
// create xml element
$root = $xml->createElement('xml');
$xml->appendChild($root);
// create 1st item
$item1 = $xml->createElement('item');
$item1->setAttribute('id', 'item1');
$item1->appendChild($xml->createTextNode('this is a text-node'));
$root->appendChild($item1);
// create 2nd item
$item2 = $xml->createElement('item');
$item2->setAttribute('id', 'item2');
$item2->appendChild($xml->createTextNode('and here is another one'));
$root->appendChild($item2);
// create 3rd item
$item3 = $xml->createElement('item');
$item3->setAttribute('id', 'item3');
$item3->appendChild($xml->createTextNode('this is the 3rd element'));
$root->appendChild($item3);
// create 4th item
$item4 = $xml->createElement('item');
$item4->setAttribute('id', 'item4');
$item4->appendChild($xml->createTextNode('and this is the last item'));
$root->appendChild($item4);
// show the dom
echo $xml->toString(1);
<?php

// include xml lib
include_once '../lib.xml.inc.php';
// define list
$list = array(1 => 'this is a text-node', 'and here is another one', 'this is the 3rd element', 'and this is the final item!');
// create new xml object
$xml = new XML();
// create xml element
$root = $xml->createElement('xml');
$xml->appendChild($root);
// loop through list
foreach ($list as $i => $text) {
    // set name of variable variable
    $item = 'item' . $i;
    // create 'item' element
    ${$item} = $xml->createElement('item');
    // set an attribute, called 'id'
    ${$item}->setAttribute('id', $item);
    // append a text-node to 'item'
    ${$item}->appendChild($xml->createTextNode($text));
    // append the new item to the root element
    $root->appendChild(${$item});
}
// show the dom
echo $xml->toString(1);
<?php

// include xml lib
include_once '../lib.xml.inc.php';
// define a list
$list = array('first in line', 'second in line', 'third in line', 'fourth in line', 'fifth in line');
// create empty xml dom object
$xml = new XML();
// create a tree
$refChild = null;
$doc = $xml->createElement('document');
for ($i = 0; $i < count($list); $i++) {
    // create new child
    $child = 'node' . ($i + 1);
    ${$child} = $xml->createElement('text-node');
    ${$child}->setAttribute('id', $child);
    ${$child}->appendChild($xml->createTextNode($list[$i]));
    // insert in tree & update refChild
    $refChild = $doc->insertBefore(${$child}, $refChild);
}
// append the created 'doc' element to the root
$xml->appendChild($doc);
// dump dom using toString
echo $xml->toString(1);