3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $v = ["1" => "Ha!"]; $var = $v[2] ?? "test"; echo $var;
based on hBLUl
Output for 7.0.0 - 7.2.0
test
Output for 5.4.12 - 5.6.28
Parse error: syntax error, unexpected '?' in /in/C0Pds on line 3
Process exited with code 255.
Output for 5.3.22 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/C0Pds on line 2
Process exited with code 255.