Fatal error: Uncaught Error: Undefined constant "STDOUT" in /home/supratz/www/skyboard-refac-backup/backend/tests/RulesEngineTest.php:36 Stack trace: #0 /home/supratz/www/skyboard-refac-backup/backend/tests/RulesEngineTest.php(202): RulesEngineTest->run() #1 {main} thrown in /home/supratz/www/skyboard-refac-backup/backend/tests/RulesEngineTest.php on line 36