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run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump($_GET['x']);
Output for 5.3.0 - 7.2.6
Notice: Undefined index: x in /in/Cl8rs on line 2 NULL
Output for 4.3.0 - 5.2.17
Notice: Undefined index: x in /in/Cl8rs on line 2 NULL