Generating an Atom feed using Nekomata. https://github.com/rumia/nekomata

atom-neko.php

<?php

$doc = Nekomata::create(array(
    'qualified_name' => 'feed',
    'namespaces' => array('_' => 'http://www.w3.org/2005/Atom')
));

// to create a new node, just call Nekomata->_().
// the first arg is the node name, second arg is the node value,
// and the third arg is an array of attributes.

// the following line will create `<title type="text">dive into mark</title>`
$doc->_('title', 'dive into mark', array('type' => 'text'));

// node value will be escaped automatically. if you want to put unescaped text,
// use Nekomata->fragment() (scroll down for example of fragment)
$doc->_(
    'subtitle',
    'A <em>lot</em> of effort went into making this effortless',
    array('type' => 'html'));

// to make things easier, you can use method chaining
$doc
    ->_('updated', '2005-07-31T12:29:29Z')
    ->_('id', 'tag:example.org,2003:3')
    // a node value of false will create a self-closing tag `<like-this/>`
    ->_('link', false, array(
        'rel' => 'alternate',
        'hreflang' => 'en',
        'href' => 'http://example.org',
        'type' => 'text/html'))
    ->_('link', false, array(
        'rel' => 'self',
        'type' => 'application/atom+xml',
        'href' => 'http://example.org/feed.atom'))
    ->_('rights', 'Copyright (C) 2003, Mark Pilgrim')
    ->_('generator', 'Example Toolkit', array('uri' => 'http://example.com', 'version' => '1.0'))
    // if you don't specify second arg or if the second arg equals to true,
    // the newly created node will become the base of the next chain.
    ->_('entry')
        ->_('title', 'Atom draft-07 snapshot') // <title> will be put inside <entry>
        ->_('link', false, array(
            'rel' => 'alternate',
            'type' => 'text/html',
            'href' => 'http://example.org/2005/04/02/atom/'))
        ->_('link', false, array(
            'rel' => 'enclosure',
            'type' => 'audio/mpeg',
            'length' => 1337,
            'href' => 'http://example.org/audio/ph34r_my_podcast.mp3'))
        ->_('id', 'tag:example.org,2003:3.2397')
        ->_('updated', '2005-07-31T12:29:29Z')
        ->_('published', '2003-12-13T08:29:29-04:00')
        ->_('author') // dive one more level
            ->_('name', 'Mark Pilgrim')
            ->_('uri', 'http://example.org')
            ->_() // to go to parent node, just call Nekomata->() without any argument
        ->_('contributor')
            ->_('name', 'Sam Ruby')
            ->_()
        ->_('contributor')
            ->_('name', 'Joe Gregorio')
            ->_()
        ->_('contributor')
            ->_('name', '-monoko-')
            ->_()
        ->_('content', true, array(
            'type' => 'xhtml',
            'xml:lang' => 'en',
            'xml:base' => 'http://diveintomark.org'))
            ->_('div', true, array('xmlns' => 'http://www.w3.org/1999/xhtml'))
                ->_('h1', 'Nunatak Gongamur')
                // use Nekomata->fragment() to insert valid xml fragment.
                // this method does not change the base node.
                ->fragment('<p><i>[Update: The Atom draft is finished.]</i></p>')
                // if you're not sure about the validity of the fragment,
                // pass a true value to its second arg to make it use html soup mode
                ->fragment('<p><strong>&foo<em><&a;></strong>', true);


// since Nekomata inherits SimpleXMLElement, you can use all SXE's magics.

// select node author and then add an email:
$doc->entry->author->_('email', '[email protected]');

// insert a new node before entry/content
$doc->entry->content->insert('category', false, array(
    'term' => 'sample',
    'scheme' => 'http://example.org/sample',
    'label' => 'Sample Document'));

// change the name of the second contributor:
$doc->entry->contributor[1]->name = 'Yakumo Yukari';

// remove -monoko- from contributor:
unset($doc->entry->contributor[2]);

// sets attribute for <h1> inside content:
$doc->entry->content->div->h1['class'] = 'article-title';

header('Content-Type: application/atom+xml');

// finally, output the document.
$doc->render('php://output', false, true);

result.xml

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<feed xmlns="http://www.w3.org/2005/Atom">
  <title type="text">dive into mark</title>
  <subtitle type="html">A &lt;em&gt;lot&lt;/em&gt; of effort went into making this effortless</subtitle>
  <updated>2005-07-31T12:29:29Z</updated>
  <id>tag:example.org,2003:3</id>
  <link rel="alternate" hreflang="en" href="http://example.org" type="text/html"/>
  <link rel="self" type="application/atom+xml" href="http://example.org/feed.atom"/>
  <rights>Copyright (C) 2003, Mark Pilgrim</rights>
  <generator uri="http://example.com" version="1.0">Example Toolkit</generator>
  <entry>
    <title>Atom draft-07 snapshot</title>
    <link rel="alternate" type="text/html" href="http://example.org/2005/04/02/atom/"/>
    <link rel="enclosure" type="audio/mpeg" length="1337" href="http://example.org/audio/ph34r_my_podcast.mp3"/>
    <id>tag:example.org,2003:3.2397</id>
    <updated>2005-07-31T12:29:29Z</updated>
    <published>2003-12-13T08:29:29-04:00</published>
    <author>
      <name>Mark Pilgrim</name>
      <uri>http://example.org</uri>
      <email>[email protected]</email>
    </author>
    <contributor>
      <name>Sam Ruby</name>
    </contributor>
    <contributor>
      <name>Yakumo Yukari</name>
    </contributor>
    <category term="sample" scheme="http://example.org/sample" label="Sample Document"/>
    <content type="xhtml" xml:lang="en" xml:base="http://diveintomark.org">
      <div xmlns="http://www.w3.org/1999/xhtml">
        <h1 class="article-title">Nunatak Gongamur</h1>
        <p>
          <i>[Update: The Atom draft is finished.]</i>
        </p>
        <p>
          <strong>&amp;foo<em/></strong>
        </p>
      </div>
    </content>
  </entry>
</feed>