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run code in 150+ php & hhvm versions
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<?php define("TRUE", false); if (1) { echo "<b/>"; } else { echo "FALSE"; } ?>
Output for 4.3.0 - 5.6.28, 7.0.0 - 7.1.0
<b/>
Output for hhvm-3.10.0 - 3.12.0
Notice: Constant TRUE already defined in /in/jWum0 on line 3 <b/>