3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(isset(null), isset(false), isset(true));
Output for 5.4.0 - 5.4.5
Parse error: syntax error, unexpected ')', expecting :: (T_PAAMAYIM_NEKUDOTAYIM) in /in/AFB7i on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.15
Parse error: syntax error, unexpected ')', expecting T_PAAMAYIM_NEKUDOTAYIM in /in/AFB7i on line 3
Process exited with code 255.
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168.28 ms | 1395 KiB | 29 Q