3v4l.org

run code in 300+ PHP versions simultaneously
<?php $doc=new DOMDocument(); $doc->loadHTML("<tagthatthrowswarning>HI</tagthatthrowswarning>", LIBXML_NOWARNING); echo $doc->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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
Warning: DOMDocument::loadHTML(): Tag tagthatthrowswarning invalid in Entity, line: 1 in /in/vZR37 on line 4 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"> <html><body><tagthatthrowswarning>HI</tagthatthrowswarning></body></html>
preferences:
144.17 ms | 409 KiB | 5 Q