3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(reset(array_filter([])));
Output for 7.0.0 - 7.2.0
Notice: Only variables should be passed by reference in /in/Upu2V on line 3 bool(false)
Output for 5.4.10 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/Upu2V on line 3 bool(false)
Output for 5.3.20 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/Upu2V on line 3
Process exited with code 255.