How to return outer html of DOMDocument?
I'm trying to replace video links inside a string - here's my code:
$doc = new DOMDocument();
$doc->loadHTML($content);
foreach ($doc->getElementsByTagName("a") as $link)
{
$url = $link->getAttribute("href");
if(strpos($url, ".flv"))
{
echo $link->outerHTML();
}
}
Unfortunately, outerHTML doesn't work when I'm trying to get the html code for the full hyperlink like <a href='http://www.myurl.com/video.flv'></a>
Any ideas how to achieve this?
As of PHP 5.3.6 you can pass a node to saveHtml , eg
$domDocument->saveHtml($nodeToGetTheOuterHtmlFrom);
Previous versions of PHP did not implement that possibility. You'd have to use saveXml() , but that would create XML compliant markup. In the case of an <a> element, that shouldn't be an issue though.
See http://blog.gordon-oheim.biz/2011-03-17-The-DOM-Goodie-in-PHP-5.3.6/
You can find a couple of propositions in the users notes of the DOM section of the PHP Manual.
For example, here's one posted by xwisdom :
<?php
// code taken from the Raxan PDI framework
// returns the html content of an element
protected function nodeContent($n, $outer=false) {
$d = new DOMDocument('1.0');
$b = $d->importNode($n->cloneNode(true),true);
$d->appendChild($b); $h = $d->saveHTML();
// remove outter tags
if (!$outer) $h = substr($h,strpos($h,'>')+1,-(strlen($n->nodeName)+4));
return $h;
}
?>
The best possible solution is to define your own function which will return you outerhtml:
function outerHTML($e) {
$doc = new DOMDocument();
$doc->appendChild($doc->importNode($e, true));
return $doc->saveHTML();
}
than you can use in your code
echo outerHTML($link);