3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr = ['one', 'two']; $val = $arr[3] ?? 'three'; var_dump($val);
Output for 7.0.0 - 7.2.0
string(5) "three"
Output for 5.4.1 - 5.6.28
Parse error: syntax error, unexpected '?' in /in/EYmTb on line 5
Process exited with code 255.
Output for 5.3.18 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/EYmTb on line 3
Process exited with code 255.