3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php error_reporting(E_ALL | E_STRICT); function foo(&$x) {echo "done";} foo(new StdClass);
Output for 7.0.14 - 7.2.0
Notice: Only variables should be passed by reference in /in/B9ZbN on line 4 done
Output for 5.0.0 - 7.0.6
done
Output for 4.3.0 - 4.4.9
Notice: Use of undefined constant E_STRICT - assumed 'E_STRICT' in /in/B9ZbN on line 2 done