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run code in 200+ php & hhvm versions
Bugs & Features
<?php define('A','test'); define('A', 'test2'); echo A;
Output for 5.5.0 - 7.1.7
Notice: Constant A already defined in /in/UcVd7 on line 4 test
Output for 4.3.0 - 5.4.45
test