Remove current node from HTML and fetch the final HTML using DOMDocument php

Question

I have a html like below:

<table>
    <thead>
        <tr>
            <th>Name</th>
            <th>Action</th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td>ABC</td>
            <td><a data-permission="allow"></a></td>
        </tr>
        <tr>
            <td>B</td>
            <td><a data-permission="allow"></a></td>
        </tr>
        <tr>
            <td>C</td>
            <td><a data-permission="allow"></a></td>
        </tr>
        <tr>
            <td>D</td>
            <td><a data-permission="allow"></a></td>
        </tr>
        <tr>
            <td>E</td>
            <td><button type="button" data-permission="allow"></button></td>
        </tr>
    </tbody>
</table>

Now i am finding the nodes who contains "data-permission" attributes like (a, button etc.) from above example.
TO do that i am using the below code. Now what i am trying do is remove that whole <a>..</a> or <button>...</button> or any other element if they contain "data-permission" attribute and after deletion only return remaining HTML. So how to achieve that?

$dom = new DOMDocument;
$dom->loadHTML($output);

$xpath = new DOMXPath($dom);
$nodes = $xpath->query('//@data-permission-id');
foreach ($nodes as $node) {
    echo $node->nodeValue;
    //$node->parentNode->removeChild($node); throws the error "Not Found Error"
}

Note- I have tried $node->parentNode->removeChild($node); inside loop, but it throws the error. Also after delete that tag, i want to get remaining HTML. I have read the How to delete element with DOMDocument? but it doesn't help.

Possible duplicate of [How to delete element with DOMDocument?](https://stackoverflow.com/questions/15272726/how-to-delete-element-with-domdocument) — Michel, Oct 24 '17 at 10:51
with PHP, on server side. @Michel, i have tried that by using $node->parentNode->removeChild($node); but it throws the 'Not Found Error'. — DS9, Oct 24 '17 at 10:55
Also, after delete, i am trying to get remaining HTML and i don't know how that's possible. — DS9, Oct 24 '17 at 10:56
i think the question is not duplicate, as its has diff. requirement compare to https://stackoverflow.com/questions/15272726/how-to-delete-element-with-domdocument — DS9, Oct 24 '17 at 12:40

Niklesh Raut · Accepted Answer · 2017-10-24T11:36:24.973

1

Replace your node value to remove : $node->nodeValue = "";

$dom = new DOMDocument;
$dom->loadHTML($output);
echo "Previous : ".PHP_EOL.$dom->textContent.PHP_EOL;
$xpath = new DOMXPath($dom);
$nodes = $xpath->query("//*[@data-permission='allow']");
foreach ($nodes as $node) {
    $node->nodeValue = "";
    $dom->saveHTML();
}

Live demo : https://eval.in/885719

Live demo with your table data : https://eval.in/885780

edited Oct 24 '17 at 11:36

answered Oct 24 '17 at 11:02

Niklesh Raut

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thank you very much. Now just 1 more question. How to get HTML instead of text Content? – DS9 Oct 24 '17 at 11:06
didnt worked with my HTML. fiddle: https://eval.in/885743, https://eval.in/885752 – DS9 Oct 24 '17 at 11:18
Although it replace the current element : https://eval.in/885762, you need to use : https://eval.in/885780 – Niklesh Raut Oct 24 '17 at 11:35

Remove current node from HTML and fetch the final HTML using DOMDocument php

1 Answers1