CODEWITHSUNDEEP
phphtmldompreg-replacedomdocument
user2335065
user2335065

Reputation: 2547

Replace one HTML attribute with the content of another HTML attribute in PHP

Say I have an HTML string with multiple occurrences like below:

<img scr1="xxxx.jpg" src="aaaa.jpg" other_attributes="some_values" />

I want to make the "src" attribute to be replaced by the value of the "src1" attributes inside the same tag. (so that in the example it would have src="xxxx.jpg" instead).

How can I achieve this with PHP?

Thanks a lot!

Upvotes: 0

Views: 227

Answers (1)

Joseph D.
Joseph D.

Reputation: 12174

Using DOMDocument

<?php
$html = '<img scr1="xxxx.jpg" src="aaaa.jpg" other_attributes="some_values" />';

$dom = new DOMDocument;
$dom->loadHTML($html, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
$xpath = new DOMXPath($dom);

$images = $xpath->query("//img");
foreach ($images as $image) {
    if ($image->hasAttribute('scr1')) {
        $src1 = $image->getAttribute('scr1');
        $image->removeAttribute('scr1');
        $image->setAttribute('src', $src1); 
    }
}

echo $dom->saveHTML();

https://3v4l.org/524Al

Result:

<img src="xxxx.jpg" other_attributes="some_values">

UPDATE

from Why doesn't PHP DOM include slash on self-closing tags:

header('Content-Type: application/xhtml+xml');
echo $dom->saveXML();

Upvotes: 2

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