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<?php class A { } class B { public function setA(A $a) { echo okay; } } $b = new B; $b->setA(null);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: B::setA(): Argument #1 ($a) must be of type A, null given, called in /in/1SHH1 on line 14 and defined in /in/1SHH1:8 Stack trace: #0 /in/1SHH1(14): B->setA(NULL) #1 {main} thrown in /in/1SHH1 on line 8
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 B::setA() must be an instance of A, null given, called in /in/1SHH1 on line 14 and defined in /in/1SHH1:8 Stack trace: #0 /in/1SHH1(14): B->setA(NULL) #1 {main} thrown in /in/1SHH1 on line 8
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Catchable fatal error: Argument 1 passed to B::setA() must be an instance of A, null given, called in /in/1SHH1 on line 14 and defined in /in/1SHH1 on line 8
Process exited with code 255.

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