run code in 150+ php & hhvm versions
Bugs & Features
<?php define('CONSTANT', 1, true); echo CONSTAnT; echo CONSTANT;
based on hAT6q
Output for 4.3.0 - 5.6.21, 7.0.0 - 7.1.0RC3
Output for hhvm-3.12.0
Warning: Case insensitive constant names are not supported in HipHop in /in/dEMHv on line 2 Notice: Use of undefined constant CONSTAnT - assumed 'CONSTAnT' in /in/dEMHv on line 3 CONSTAnT1
Output for hhvm-3.10.0

Process exited with code 153.