3v4l.org

run code in 300+ PHP versions simultaneously
<?php try { function returnsNull(): null { return null; } } catch (ParseError $e) { var_dump($e); }
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.30, 5.6.8 - 5.6.15
Parse error: syntax error, unexpected ':', expecting '{' in /in/HKfFU on line 4
Process exited with code 255.
preferences:
180.87 ms | 1395 KiB | 67 Q