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run code in 300+ PHP versions simultaneously
<?php class Foo {} interface Bar { public function test(Foo $foo); } class Baz implements Bar { public function test($foo) { var_dump($foo); } } $f = new Foo(); $z = new Baz(); $z->test($f); $z->test(true);
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
object(Foo)#1 (0) { } bool(true)
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33
Fatal error: Declaration of Baz::test($foo) must be compatible with Bar::test(Foo $foo) in /in/8bUmQ on line 5
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Fatal error: Declaration of Baz::test() must be compatible with Bar::test(Foo $foo) in /in/8bUmQ on line 5
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 Baz::test() must be compatible with that of Bar::test() in /in/8bUmQ on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/8bUmQ on line 4
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/8bUmQ on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/8bUmQ on line 4
Process exited with code 255.

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