Online PHP editor | vld for LvL82

<?php $homepage = "https://example.com/"; $html = '<img class="drt" src="100.png"><img src="../101.png"><img src="/102.png"><img src="103.png">'; $check_img = preg_match_all("/<img .*?(?=src)src=\"([^\"]+)\"/si", $html, $m); foreach ($m[1] as $img){ if (strpos($img, $homepage) == false) { $old_img = $img; $html = str_replace($old_img, $homepage.basename($old_img), $html); } } echo $html;