<?php
$html = '<div id="x"><img src="/images/xyz" alt="xyz" /><p>hello world!</p></div>';
$doc = new DomDocument();
$doc->loadHTML($html, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
$xpath = new DomXPath($doc);
$images = $xpath->query('//img');
foreach ($images as $img) {
// create a new anchor element
$a = $doc->createElement('a');
// copy the img src attribute to the a href attribute
$a->setAttribute('href', $img->attributes->getNamedItem('src')->nodeValue);
// add the a to the parent
$img->parentNode->replaceChild($a, $img);
// make the image a child of the <a> element
$a->appendChild($img);
}
echo $doc->saveHTML();
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
<div id="x"><a href="/images/xyz"><img src="/images/xyz" alt="xyz"></a><p>hello world!</p></div>