Break apart an html string, keep the tags and positions

cope.php

<?php

$text = <<<EOF
<p>there is more to it <i>than</i> this.</p>
<div class="test">more test stuff.</div>
<p>Last bit of text in a paragraph.</p>
<p>Continuing to test this.</p>
EOF;
$plainText = strip_tags($text);

// Get all of the html tags
preg_match_all('/<\/?\w+((\s+\w+(\s*=\s*(?:\".*?\\\"|.*?|[^">\s]+))?)+\s*|\s*)\/?>/s', $text, $matches, PREG_PATTERN_ORDER);
//var_dump($matches[0]);die();

// Create an array that contains the tag and the position
// where it needs to be entered at
$intOffset = 0;
$intIndex = 0;
$intTagPositions = array();
foreach ($matches[0] as $tag){
  $intTagPositions[$intIndex] = array(
    'tag' => $tag,
    'start' => (int) strpos($text, $tag, $intOffset),
  );
  $intOffset = (int) strpos($text, $tag, $intOffset) + strlen($tag); 
  $intIndex++;
}
// Dump the array
//var_dump($intTagPositions);die();

// The the array of where each tag needs to be placed and
// put it into the plain text
$newString = $plainText;
foreach ($intTagPositions as $tag){
  $part1 = substr($newString, 0, $tag['start']);
  $part2 = substr($newString, $tag['start']);
  $part1 = $part1 . $tag['tag'];
  $newString = $part1 . $part2;
}
var_dump($plainText,$newString);
die();