3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function test($foo = null) {} } class Bar extends Foo { public function test(...$foo) {} }
Output for 5.6.8 - 5.6.28, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Output for 7.4.0 - 7.4.33
Warning: Declaration of Bar::test(...$foo) should be compatible with Foo::test($foo = NULL) in /in/jIOs7 on line 7
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Warning: Declaration of Bar::test(...$foo) should be compatible with Foo::test($foo = NULL) in /in/jIOs7 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/jIOs7 on line 7
Process exited with code 255.

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