Get contents of BODY without DOCTYPE, HTML, HEAD and BODY tags

Question

What I am trying to do is include an HTML file within a PHP system (not a problem) but that HTML file also needs to be usable on its own, for various reasons, so I need to know

Answer 1

You may want to use PHP tidy extension which can fix invalid XHTML structures (in which case DOMDocument load crashes) and also extract body only:

$tidy = new tidy();
$htmlBody = $tidy->repairString($html, array(
    'output-xhtml' => true,
    'show-body-only' => true,
), 'utf8');

Then load extracted body into DOMDocument:

$xml = new DOMDocument();
$xml->loadHTML($htmlBody);

Then traverse, extract, move around XML nodes etc .. and save:

$output = $xml->saveXML();