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run code in 150+ php & hhvm versions
Bugs & Features
<?php $constant = 'STDOUT'; if (constant($constant) && ! is_scalar($constant)) { echo 'Yes, I am non-scalar constant'; }
based on OIBGZ
Output for 5.2.3 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Output for 4.3.2 - 5.2.2
Warning: constant(): Couldn't find constant STDOUT in /in/sF8UQ on line 4
Output for 4.3.0 - 4.3.1
Warning: constant() [http://www.php.net/function.constant]: Couldn't find constant STDOUT in /in/sF8UQ on line 4