3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $var = null; htmlspecialchars($var);
Output for 5.6.0 - 5.6.30, hhvm-3.21.3 - 3.22.0, 7.0.0 - 7.3.0beta1
Output for hhvm-3.18.5
Warning: htmlspecialchars() expects parameter 1 to be string, null given in /in/o1V7h on line 5