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<?php class A { public function f() { return false; } } $a = new A(); function f(A $a) { if ($a->f()) { echo 1; } else { echo 0; } } f(null);
Output for 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: Uncaught TypeError: f(): Argument #1 ($a) must be of type A, null given, called in /in/NYjPP on line 20 and defined in /in/NYjPP:11 Stack trace: #0 /in/NYjPP(20): f(NULL) #1 {main} thrown in /in/NYjPP on line 11
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, 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: Argument 1 passed to f() must be an instance of A, null given, called in /in/NYjPP on line 20 and defined in /in/NYjPP:11 Stack trace: #0 /in/NYjPP(20): f(NULL) #1 {main} thrown in /in/NYjPP on line 11
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Catchable fatal error: Argument 1 passed to f() must be an instance of A, null given, called in /in/NYjPP on line 20 and defined in /in/NYjPP on line 11
Process exited with code 255.
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