Missing PHP Manual INI links

<?php
$document = new DOMDocument();
$document->load('.manual.xml');

function ini_link($ini) {
 foreach ($ini->getElementsByTagName('row') as $row) {
  $name = $row->getElementsByTagName('entry')->item(0);
  if (!$name->getElementsByTagName('link')->length) {
   if ($ini->ownerDocument->getElementById('ini.' . str_replace('_', '-', $name->nodeValue))) {
    echo "$name->nodeValue\n";
   }
  }
 }
}

ini_link($document->getElementById('ini.list'));

foreach ($document->getElementsByTagName('section') as $section) {
 if (preg_match('/\.configuration/', $section->getAttribute('xml:id'))) {
  ini_link($section);
 }
}