3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = NULL; $y = NULL; $z = NULL; $result = !empty($x) ? $x : (!empty($y) ? $y : (!empty($z) ? $z : 'empty')); echo $result . "\n"; // Using in PHP 7 $result2 = $x ?? $y ?? $z; echo $result2 . "\n";
based on ZNb2Z
Output for 7.0.0 - 7.3.0rc4
empty
Output for 5.3.20 - 5.6.28
Parse error: syntax error, unexpected '?' in /in/hSR8r on line 12
Process exited with code 255.