3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(htmlspecialchars(chr(128)));
based on Jee4k
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(0) ""
Output for 4.3.0 - 5.3.29
string(1) "�"