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run code in 150+ php & hhvm versions
Bugs & Features
<?php $valueOfTrue = 0; // this was coming from config in real-world. $valueOfFalse = 1; // Same here. ^ define('TRUE', false, true); define('FALSE', true, true); var_dump(TRUE, FALSE); // Happy debugging...
Output for 4.3.0 - 5.0.5, 5.1.1 - 5.6.28, 7.0.0 - 7.1.0
Notice: Constant true already defined in /in/QQDcS on line 5 Notice: Constant false already defined in /in/QQDcS on line 6 bool(true) bool(false)
Output for hhvm-3.10.0 - 3.12.0
Warning: Case insensitive constant names are not supported in HipHop in /in/QQDcS on line 5 Notice: Constant TRUE already defined in /in/QQDcS on line 5 Warning: Case insensitive constant names are not supported in HipHop in /in/QQDcS on line 6 Notice: Constant FALSE already defined in /in/QQDcS on line 6 bool(true) bool(false)
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/QQDcS on line 8
Process exited with code 255.