3v4l.org

run code in 200+ PHP versions simultaneously
<?php $html = <<<HTML <div> <img src="icons/example.svg"> <a href="http://www.example.com">a link</a> <link href="css/example.css"> <iframe src="http://www.example.com/default.htm"></iframe> </div> HTML; $dom = new DOMDocument(); $dom->loadHTML($html, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD); $xpath = new DOMXPath($dom); foreach ($xpath->query('//img/@src | //link/@href') as $attr) { $attr->value = "{{asset('" . $attr->value . ")'}}"; } var_export(substr($dom->saveXML(), 38)); // remove the leading '<?xml version="1.0" standalone="yes"?>'
based on Cjqj5
Output for 7.2.0 - 7.4.6
' <div> <img src="{{asset(\'icons/example.svg)\'}}"/> <a href="http://www.example.com">a link</a> <link href="{{asset(\'css/example.css)\'}}"/> <iframe src="http://www.example.com/default.htm"/> </div> ''