3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function test(Foo $foo = null) {} } class Bar extends Foo { public function test(...$bar) {} }
Output for 8.4.1 - 8.4.12
Deprecated: Foo::test(): Implicitly marking parameter $foo as nullable is deprecated, the explicit nullable type must be used instead in /in/HQdvI on line 4
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25
Output for 7.4.0 - 7.4.33
Warning: Declaration of Bar::test(...$bar) should be compatible with Foo::test(?Foo $foo = NULL) in /in/HQdvI on line 7
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33
Warning: Declaration of Bar::test(...$bar) should be compatible with Foo::test(?Foo $foo = NULL) in /in/HQdvI on line 8
Output for 7.0.0 - 7.0.20
Warning: Declaration of Bar::test(...$bar) should be compatible with Foo::test(Foo $foo = NULL) in /in/HQdvI on line 8
Output for 5.6.8 - 5.6.28
Strict Standards: Declaration of Bar::test() should be compatible with Foo::test(Foo $foo = NULL) in /in/HQdvI on line 8
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/HQdvI on line 7
Process exited with code 255.
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