PHP DOMDocument without the DTD, head, and body ta

问题:

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, and it is being rendered on an already well formed page. I don't need additional tags.

回答1:

Since PHP 5.3.6, you can use a node in echo $DOMDocument->saveHTML($the_node_you_want_to_show), before that, I've abused ->saveXML() with minor fixes. You must however have 1 surrounding included node (e.g. output is <div>...somecontent and nodex....</div>, or loop through the nodes children if you don't want have 1 surrounding tag;

$html = '';
foreach($rootnode->childNodes as $node){
    $html .= $rootnode->ownerdocument->saveHTML($node);
}

回答2:

What @Wrikken said or, for PHP < 5.3.6, just use a regular expression:

$html = preg_replace('~<(?:!DOCTYPE|/?(?:html|body))[^>]*>\s*~i', '', $dom->saveHTML());