PHP XML add edit delete - php

Question

I have the following XML structure, and I would like to have code that:
INSERTS
DELETES
Delete an entire element based on its TITLE value.
Replace the publisher's value with another value
<Game type="XXX">
<TITLE>XXX</TITLE>
<PUBLISHER>XXX</PUBLISHER>
</Game>
This is my XML structure:
<?xml version="1.0" encoding ="utf-8"?>
<GameStore>
<Game type="adventure">
<TITLE>Assassin's Creed: Brotherhood</TITLE>
<PUBLISHER>Ubisoft</PUBLISHER>
</Game>
<Game type="adventure">
<TITLE>Batman: Arkham Asylum</TITLE>
<PUBLISHER>Eidos</PUBLISHER>
</Game>
</GameStore>

Answer 1

Using SimpleXML:
<?php
// load the XML file
$games = simplexml_load_file('games.xml');
$i = 0;
foreach ($games as $game) {
if ($game->TITLE == 'Batman: Arkham Asylum') {
// remove the Game element
unset($games->Game[$i]);
}
$i++;
}
// save the amended file
$games->asXML('games2.xml');
?>

Answer 2

You will want to use the PHP DOM classes. I think it goes something like this.
To load an XML file.
$xml = new DOMDocument();
$xml->load('path/to/file.xml');
To insert.
$node = $xml->createElement('Game');
$newnode = $xml->appendChild($node);
To delete based on title.
foreach ($xml->Game as $node) {
if ($node->TITLE->nodeValue == 'some_title') {
$xml->removeChild($node);
}
}
etc
more info at http://www.php.net/manual/en/book.dom.php

Answer 3

You will need to learn http://www.php.net/manual/fr/book.dom.php for manipulating xml.
There is some hints :
// Inserts
$new_node = $dom->createElement('foo', 'bar');
$gamestore_node = $xpath->query('/*')->item(0)->appendChild($new_node);
echo $dom->saveXML();
// Delete based on title
$deletable_node = $xpath->query("//Game[TITLE/text() = 'Batman: Arkham Asylum']")->item(0);
$deletable_node->parentNode->removeChild($deletable_node);
echo $dom->saveXML();
// EDIT Replace Publisher's value with another value
$editable_node = $xpath->query("//PUBLISHER[text() = 'Ubisoft']")->item(0);
$editable_node->nodeValue = 'baz';
echo $dom->saveXML();