3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = array("first" => "Ana", "second" => "Jane"); echo "I met {$a[first]} today!";
Output for 7.2.0 - 7.3.0beta1
Warning: Use of undefined constant first - assumed 'first' (this will throw an Error in a future version of PHP) in /in/B3S8p on line 4 I met Ana today!
Output for 4.3.0 - 7.1.20
Notice: Use of undefined constant first - assumed 'first' in /in/B3S8p on line 4 I met Ana today!