3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php print setlocale(LC_ALL, 'fi_FI.iso88591'); print strtoupper('öäå');
based on GdI3j
Output for 4.3.0 - 7.1.7, 7.2.0
öäå
Output for 7.1.10

Process exited with code 137.