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run code in 150+ php & hhvm versions
Bugs & Features
<?php define('debug_mode', false); var_dump(define('debug_mode'));
based on k1n8U
Output for 5.2.7 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Warning: define() expects at least 2 parameters, 1 given in /in/1Ff8N on line 3 NULL
Output for 4.3.0 - 5.2.6
Warning: Wrong parameter count for define() in /in/1Ff8N on line 3 NULL