3v4l.org

run code in 300+ PHP versions simultaneously
<?php /*trait Foo { private $name = '123'; } class Bar { use Foo; private $name = '321'; public function getName(){echo $this->name;} } $bar = new Bar(); $bar->getName();*/ echo false; class Faz {} class Baz extends Faz {} interface Foo {public function du(Faz $param);} class A implements Foo { public function du(Baz $param){ echo false; } }
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Declaration of A::du(Baz $param) must be compatible with Foo::du(Faz $param) in /in/aJnd4 on line 24
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Fatal error: Declaration of A::du(Baz $param) must be compatible with Foo::du(Faz $param) in /in/aJnd4 on line 22
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Declaration of A::du() must be compatible with Foo::du(Faz $param) in /in/aJnd4 on line 22
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Fatal error: Declaration of A::du() must be compatible with that of Foo::du() in /in/aJnd4 on line 22
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/aJnd4 on line 20
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING in /in/aJnd4 on line 20
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/aJnd4 on line 20
Process exited with code 255.

preferences:
289.18 ms | 401 KiB | 459 Q