3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr = [a, s, d, '', a, s, d, '', a, s, d, '',]; print_r(array_filter($arr));
based on 5B6E4
Output for 7.2.0
Warning: Use of undefined constant a - assumed 'a' (this will throw an Error in a future version of PHP) in /in/CGvf0 on line 3 Warning: Use of undefined constant s - assumed 's' (this will throw an Error in a future version of PHP) in /in/CGvf0 on line 3 Warning: Use of undefined constant d - assumed 'd' (this will throw an Error in a future version of PHP) in /in/CGvf0 on line 3 Warning: Use of undefined constant a - assumed 'a' (this will throw an Error in a future version of PHP) in /in/CGvf0 on line 3 Warning: Use of undefined constant s - assumed 's' (this will throw an Error in a future version of PHP) in /in/CGvf0 on line 3 Warning: Use of undefined constant d - assumed 'd' (this will throw an Error in a future version of PHP) in /in/CGvf0 on line 3 Warning: Use of undefined constant a - assumed 'a' (this will throw an Error in a future version of PHP) in /in/CGvf0 on line 3 Warning: Use of undefined constant s - assumed 's' (this will throw an Error in a future version of PHP) in /in/CGvf0 on line 3 Warning: Use of undefined constant d - assumed 'd' (this will throw an Error in a future version of PHP) in /in/CGvf0 on line 3 Array ( [0] => a [1] => s [2] => d [4] => a [5] => s [6] => d [8] => a [9] => s [10] => d )
Output for 5.4.10 - 7.1.10
Notice: Use of undefined constant a - assumed 'a' in /in/CGvf0 on line 3 Notice: Use of undefined constant s - assumed 's' in /in/CGvf0 on line 3 Notice: Use of undefined constant d - assumed 'd' in /in/CGvf0 on line 3 Notice: Use of undefined constant a - assumed 'a' in /in/CGvf0 on line 3 Notice: Use of undefined constant s - assumed 's' in /in/CGvf0 on line 3 Notice: Use of undefined constant d - assumed 'd' in /in/CGvf0 on line 3 Notice: Use of undefined constant a - assumed 'a' in /in/CGvf0 on line 3 Notice: Use of undefined constant s - assumed 's' in /in/CGvf0 on line 3 Notice: Use of undefined constant d - assumed 'd' in /in/CGvf0 on line 3 Array ( [0] => a [1] => s [2] => d [4] => a [5] => s [6] => d [8] => a [9] => s [10] => d )
Output for 5.3.20 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/CGvf0 on line 3
Process exited with code 255.