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run code in 150+ php & hhvm versions
Bugs & Features
<?php //define("true",false); -- notice: Constant already defined ... define("TRUE", false); define("FALSE", true); define("NAME","Zelia"); echo defined("TRUE"),TRUE; echo "\n",defined("true"),true; echo "\n",defined("false"),false;
Output for 5.1.3 - 5.6.28, 7.0.0 - 7.1.0
11 11 1
Output for hhvm-3.10.0 - 3.12.0
Notice: Constant TRUE already defined in /in/eNWMh on line 3 Notice: Constant FALSE already defined in /in/eNWMh on line 4 11 11 1
Output for 4.3.0 - 5.1.2
1 11 1