How to extract innerHTML using the PHP Dom [duplicate] - php

Question

This question already has answers here:
How to get innerHTML of DOMNode?
(9 answers)
Closed 2 years ago.
I'm currently using nodeValue to give me HTML output, however it is stripping the HTML code and just giving me plain text. Does anyone know how I can modify my code to give me the inner HTML of an element by using it's ID?
function getContent($url, $id){
// This first section gets the HTML stuff using a URL
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
$html = curl_exec($ch);
curl_close($ch);
// This second section analyses the HTML and outputs it
$newDom = new domDocument;
$newDom->loadHTML($html);
$newDom->preserveWhiteSpace = false;
$newDom->validateOnParse = true;
$sections = $newDom->getElementById($id)->nodeValue;
echo $sections;
}

Answer 1

This works for me:
$sections = $newDom->saveXML($newDom->getElementById($id));
http://www.php.net/manual/en/domdocument.savexml.php
If you have PHP 5.3.6, this might also be an option:
$sections = $newDom->saveHTML($newDom->getElementById($id));
http://www.php.net/manual/en/domdocument.savehtml.php

Answer 2

I have modify the code, and it's working fine for me. Please find below the code
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
$html = curl_exec($ch);
curl_close($ch);
$newDom = new domDocument;
libxml_use_internal_errors(true);
$newDom->loadHTML($html);
libxml_use_internal_errors(false);
$newDom->preserveWhiteSpace = false;
$newDom->validateOnParse = true;
$sections = $newDom->saveHTML($newDom->getElementById('colophon'));
echo $sections;