3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function test(Foo $foo = null) {} } class Bar extends Foo { public function test(Foo $foo = null, ...$bar) {} }
Output for 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Deprecated: Foo::test(): Implicitly marking parameter $foo as nullable is deprecated, the explicit nullable type must be used instead in /in/74r3K on line 4 Deprecated: Bar::test(): Implicitly marking parameter $foo as nullable is deprecated, the explicit nullable type must be used instead in /in/74r3K on line 7
Output for 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.5 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35
Parse error: syntax error, unexpected '.', expecting '&' or variable (T_VARIABLE) in /in/74r3K on line 7
Process exited with code 255.
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85.95 ms | 1664 KiB | 4 Q