3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $_GET['success'] = null; $success = $_GET['success'] ?? false; var_dump ($success);
based on YVgC2
Output for 7.0.0 - 7.2.0
bool(false)
Output for 5.3.18 - 5.6.28
Parse error: syntax error, unexpected '?' in /in/dCm6J on line 4
Process exited with code 255.