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run code in 150+ php & hhvm versions
Bugs & Features
<?php define ('true', false, true); if (1 == true) echo('1 == true');
Output for 4.3.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Constant true already defined in /in/5qQ8e on line 3 1 == true
Output for hhvm-3.10.0 - 3.12.0
Warning: Case insensitive constant names are not supported in HipHop in /in/5qQ8e on line 3 Notice: Constant true already defined in /in/5qQ8e on line 3 1 == true