3v4l.org

run code in 500+ PHP versions simultaneously
<?php class a {}; function doit(A $a = NULL) { print "Yay!"; } doit(NULL);
Output for 8.4.1 - 8.4.24, 8.5.0 - 8.5.9
Deprecated: doit(): Implicitly marking parameter $a as nullable is deprecated, the explicit nullable type must be used instead in /in/spMXd on line 5 Yay!
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.33
Yay!
preferences:
107.59 ms | 1401 KiB | 4 Q