- Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
- http://example.com/img.jpg
<?php
$str = 'Lorem ipsum dolor sit amet, adipisicing <img src="http://example.com/img.jpg" />consequat.';
$dom = new DOMDocument;
$dom->loadHTML($str);
echo (new DOMXPath($dom))->evaluate('string(//img/@src)');