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<?php namespace NS { class A { function test() { echo 'test'; } } } namespace NS2 { class_alias( 'NS\A', 'B' ); } namespace NS3 { class MyClass extends \B { function test() { echo 'test under MyClass'; } } } namespace NS4 { function foo (\A $f) { $f->test(); } foo (new \NS3\MyClass); }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught TypeError: NS4\foo(): Argument #1 ($f) must be of type A, NS3\MyClass given, called in /in/82ZD3 on line 27 and defined in /in/82ZD3:23 Stack trace: #0 /in/82ZD3(27): NS4\foo(Object(NS3\MyClass)) #1 {main} thrown in /in/82ZD3 on line 23
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: Argument 1 passed to NS4\foo() must be an instance of A, instance of NS3\MyClass given, called in /in/82ZD3 on line 27 and defined in /in/82ZD3:23 Stack trace: #0 /in/82ZD3(27): NS4\foo(Object(NS3\MyClass)) #1 {main} thrown in /in/82ZD3 on line 23
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Catchable fatal error: Argument 1 passed to NS4\foo() must be an instance of A, instance of NS3\MyClass given, called in /in/82ZD3 on line 27 and defined in /in/82ZD3 on line 23
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_STRING in /in/82ZD3 on line 2
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, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/82ZD3 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/82ZD3 on line 2
Process exited with code 255.

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