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<?php class A { public function b(A $a) { var_dump($a); } } $x = new A(); $y = null; $x->b($y);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught TypeError: A::b(): Argument #1 ($a) must be of type A, null given, called in /in/v54Ze on line 11 and defined in /in/v54Ze:4 Stack trace: #0 /in/v54Ze(11): A->b(NULL) #1 {main} thrown in /in/v54Ze on line 4
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Fatal error: Uncaught TypeError: A::b(): Argument #1 ($a) must be of type A, null given, called in /in/v54Ze on line 11 and defined in /in/v54Ze:4 Stack trace: #0 /in/v54Ze(11): A->b(NULL) #1 {main} thrown in /in/v54Ze on line 4
Process exited with code 255.
Output for 7.0.33, 7.1.0 - 7.1.25, 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 A::b() must be an instance of A, null given, called in /in/v54Ze on line 11 and defined in /in/v54Ze:4 Stack trace: #0 /in/v54Ze(11): A->b(NULL) #1 {main} thrown in /in/v54Ze on line 4
Process exited with code 255.
Output for 5.6.38
Catchable fatal error: Argument 1 passed to A::b() must be an instance of A, null given, called in /in/v54Ze on line 11 and defined in /in/v54Ze on line 4
Process exited with code 255.

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