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run code in 200+ php & hhvm versions
Bugs & Features
<?php define('TRUE', false); define('true', false); define('FALSE', true); define('false', true); var_dump(true, false);
Output for 4.3.0 - 4.3.6, 4.3.9 - 4.4.9, 5.0.1 - 7.1.7
Notice: Constant true already defined in /in/dgvPD on line 3 Notice: Constant false already defined in /in/dgvPD on line 5 bool(true) bool(false)
Output for 4.3.7 - 4.3.8, 5.0.0
Notice: Constant already defined in /in/dgvPD on line 3 Notice: Constant already defined in /in/dgvPD on line 5 bool(true) bool(false)