Is it possible to use the DOMDocument class and not allow it to add doc type declarations, head, and body tags? I am writing my current bit of code for a server side include
What @Wrikken said or, for PHP < 5.3.6, just use a regular expression:
$html = preg_replace('~<(?:!DOCTYPE|/?(?:html|body))[^>]*>\s*~i', '', $dom->saveHTML());