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run code in 150+ php & hhvm versions
Bugs & Features
<?php define('dd', 'DEFINE'); define('cc', 'DEFINE2'); $a = 'dd'; $b = 'cc'; $flags = array(); $flags |= constant($a); $flags |= constant($b); var_dump($flags);
Output for 7.1.0
Warning: A non-numeric value encountered in /in/mvfEd on line 11 Warning: A non-numeric value encountered in /in/mvfEd on line 12 int(0)
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.0.14
int(0)