3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function a() { return array('id' => 12); } echo current(a());
Output for 4.3.0 - 5.0.4, 5.1.0 - 7.1.0
12
Output for 5.0.5
Fatal error: Only variables can be passed by reference in /in/Y0A50 on line 6
Process exited with code 255.