3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php error_reporting(E_ALL); $a = array('foo' => array('foo2'=>'hello')); echo reset(reset($a));
Output for 7.0.0 - 7.1.0
Notice: Only variables should be passed by reference in /in/TiVOh on line 7 hello
Output for 4.3.0 - 5.0.4, 5.1.0 - 5.3.29, hhvm-3.10.0 - 3.12.0
hello
Output for 5.4.0 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/TiVOh on line 7 hello
Output for 5.0.5
Fatal error: Only variables can be passed by reference in /in/TiVOh on line 7
Process exited with code 255.