3v4l.org

run code in 500+ PHP versions simultaneously
<?php class Foo extends Exception { protected string $file = ''; }
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.33, 8.4.1 - 8.4.24, 8.5.0 - 8.5.9
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30
Fatal error: Type of Foo::$file must not be defined (as in class Exception) in /in/edBKq on line 6
Process exited with code 255.
preferences:
84.2 ms | 1281 KiB | 4 Q