3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php empty('NULL'); ?>
Output for 5.5.24 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected ''NULL'' (T_CONSTANT_ENCAPSED_STRING) in /in/fSqcB on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/fSqcB on line 2
Process exited with code 255.