Online PHP editor | refs for PuGgH

<?php $html = <<<HTML <div> <img src="docs/relative/url/img.jpg" /> <img src="/docs/relative/url/img.jpg" /> <img src="https://docs/relative/url/img.jpg" /> <img src="http://docs/relative/url/img.jpg" /> </div> HTML; $base = 'https://example.com/'; $dom = new DOMDocument; $dom->loadHTML($html, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD); $xpath = new DOMXPath($dom); foreach ($xpath->query("//img[not(starts-with(@src, 'http'))]") as $node) { $node->setAttribute('src', $base . ltrim($node->getAttribute('src'), '/')); } echo $dom->saveHTML();