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run code in 150+ php & hhvm versions
Bugs & Features
<?php define("true",0); define("TRUE",false); echo true; echo TRUE;
Output for 5.1.3 - 7.1.0
Notice: Constant true already defined in /in/tnu5H on line 2 11
Output for 4.3.0 - 4.3.6, 4.3.9 - 4.4.9, 5.0.1 - 5.1.2
Notice: Constant true already defined in /in/tnu5H on line 2 1
Output for 4.3.7 - 4.3.8, 5.0.0
Notice: Constant already defined in /in/tnu5H on line 2 1