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run code in 200+ php & hhvm versions
Bugs & Features
<?php ${''} = ok; echo ${''};
based on hA52l
Output for 7.2.0
Warning: Use of undefined constant ok - assumed 'ok' (this will throw an Error in a future version of PHP) in /in/7CpAA on line 2 ok
Output for 5.3.19 - 7.1.10
Notice: Use of undefined constant ok - assumed 'ok' in /in/7CpAA on line 2 ok