3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php mb_substitute_character(ord('?')); var_dump(mb_convert_encoding(chr(190), 'UTF-8', 'UTF-8'));
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(1) "?"
Output for 4.3.0 - 5.3.29
string(0) ""