PHP DOM get nodevalue html? (without stripping tags)

Question

I am trying to get the innerhtml of div tags in a file using nodeValue, however this code is outputting only plain text and seems to strip out all html tag from inside the div. How can I change this code to output the div's HTML content and not plain text, AND also output the main div wrapping it's child elements.

Example:

contents of file.txt:

<div class="1"><span class="test">text text text</span></div>
<div class="2"><span class="test">text text text</span></div>
<div class="3"><span class="test">text text text</span></div>

script.php:

  $file= file_get_contents('file.txt');

    $doc = new DOMDocument();

    @$doc->loadHTML('<?xml encoding="UTF-8">'.$file); 

    $entries = $doc->getElementsByTagName('div');

        for ($i=0;$i<$entries->length;$i++) {
            $entry = $entries->item($i);
            echo $entry->nodeValue;
        }

outputs: text text texttext text texttext text text

what I need it to output:

<div class="1"><span class="test">text text text</span></div>
<div class="2"><span class="test">text text text</span></div>
<div class="3"><span class="test">text text text</span></div>

Notice the parent div's (..etc) are needed to be outputted as well wrapping the span tags...

HELP!

regex · Accepted Answer · 2011-06-08 23:28:53Z

42

I have never done what you're attempting to do, but as a stab in the dark, using the API docs, does echo $entry->textContent; work?

Adding an update. This is from the comments located on the docs page for DOMNode:

Hi!

Combining all th comments, the easiest way to get inner HTML of the node is to use this function:

<?php  function get_inner_html( $node ) { 
    $innerHTML= ''; 
    $children = $node->childNodes; 
    foreach ($children as $child) { 
        $innerHTML .= $child->ownerDocument->saveXML( $child ); 
    } 

    return $innerHTML;  }  ?>

Or, maybe a simpler method is just to do:

echo $domDocument->saveXML($entry);

edited Jun 8, 2011 at 23:28

answered Jun 8, 2011 at 23:18

regex

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7 Comments

regex Over a year ago

Sorry, should have included this in the post, but here is where I found this: php.net/manual/en/class.domnode.php textContent = "This attribute returns the text content of this node and its descendants."

Marty Over a year ago

Nope, this does the same thing as nodeValue

regex Over a year ago

According to a comment in the docs, traversing is the best way to get the innerHTML. Let me know if that works for you.

Marty Over a year ago

I have not tested the code you posted but I found this

function innerXML($node) {     $doc  = $node->ownerDocument;     $frag = $doc->createDocumentFragment();     foreach ($node->childNodes as $child)     {         $frag->appendChild($child->cloneNode(TRUE));     }     return $doc->saveXML($frag); }

and it works. Thanks!

regex Over a year ago

Cool, not sure I was much help, but hopefully, at the least, pointed you in the right direction.

|

Avatar · Accepted Answer · 2019-01-02 04:06:40Z

16

Instead of:

echo $entry->nodeValue;

You have to use:

echo $doc->saveXML($entry);

Here is a more complete example that might help others too, $doccontent is the HTML block as a string:

$doccontent = '<html> …'; // your html string
$dom = new DOMDocument;
$internalErrors = libxml_use_internal_errors(true); // prevent error messages 
$content_utf = mb_convert_encoding($doccontent, 'HTML-ENTITIES', 'UTF-8'); // correct parsing of utf-8 chars
$dom->loadHTML($content_utf);
libxml_use_internal_errors($internalErrors); // prevent error messages 
$specialdiv = $dom->getElementById('xdiv');
if(isset($specialdiv))
{
    echo $dom->saveXML($specialdiv);
}

edited Jan 2, 2019 at 4:06

answered Nov 29, 2016 at 20:52

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