3v4l.org

run code in 500+ PHP versions simultaneously
<?php $html = <<<STR <html><body> <a href="http://www.test.org/5521" rel="follow">test1</a><br/> <a href="http://www.test.org/5522" rel="external">test1</a><br/> <a href="http://www.test.org/5523">test1</a> </body></html> STR; $dom = new DOMDocument('1.0', 'UTF-8'); $dom->loadHTML($html, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD); $links = $dom->getElementsByTagName("a"); foreach($links as $link) { $link->setAttribute('rel', 'nofollow'); } echo $dom->saveHTML();
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
<html><body> <a href="http://www.test.org/5521" rel="nofollow">test1</a><br> <a href="http://www.test.org/5522" rel="nofollow">test1</a><br> <a href="http://www.test.org/5523" rel="nofollow">test1</a> </body></html>
preferences:
93.07 ms | 2051 KiB | 4 Q