3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $r = array(); $rr = shuffle(array_merge(array(), $r)); var_dump($rr);
based on 1KEro
Output for 7.0.0 - 7.1.0
Notice: Only variables should be passed by reference in /in/1BTop on line 4 bool(true)
Output for 4.3.0 - 5.0.4, hhvm-3.12.0
bool(true)
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.1.0 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/1BTop on line 4 bool(true)
Output for 5.0.5
Fatal error: Only variables can be passed by reference in /in/1BTop on line 4
Process exited with code 255.