3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php print_r(0, 10); echo "<br />"; print_r(a, z);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
<br /> Notice: Use of undefined constant a - assumed 'a' in /in/o1UbR on line 8 Notice: Use of undefined constant z - assumed 'z' in /in/o1UbR on line 8