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run code in 150+ php & hhvm versions
Bugs & Features
<?php $test = isset(false); var_dump($test);
Output for hhvm-3.12.0
bool(true)
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.4.0 - 5.4.28
Parse error: syntax error, unexpected ')', expecting :: (T_PAAMAYIM_NEKUDOTAYIM) in /in/pvbNn on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected ')', expecting T_PAAMAYIM_NEKUDOTAYIM in /in/pvbNn on line 2
Process exited with code 255.