3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php if(isset(NULL)) { echo "true\n"; } else { echo "false\n"; }
Output for 5.4.0 - 5.4.31
Parse error: syntax error, unexpected ')', expecting :: (T_PAAMAYIM_NEKUDOTAYIM) in /in/OVZnn on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected ')', expecting T_PAAMAYIM_NEKUDOTAYIM in /in/OVZnn on line 3
Process exited with code 255.