3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr = [1,2,3]; var_dump(key(array_slice($arr, 2, 1, true))); var_dump(end(array_slice($arr, 2, 1, true)));
based on MpYeo
Output for 7.0.0 - 7.2.0
int(2) Notice: Only variables should be passed by reference in /in/XT9ev on line 4 int(3)
Output for 5.4.0 - 5.6.28
int(2) Strict Standards: Only variables should be passed by reference in /in/XT9ev on line 4 int(3)
Output for 5.3.19 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/XT9ev on line 2
Process exited with code 255.