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<?php class A { public function b(A $a) {} } class B extends A { public function b(B $a) {} } $b = new B();
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: Declaration of B::b(B $a) must be compatible with A::b(A $a) in /in/9N5BR on line 7
Process exited with code 255.
Output for 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; B has a deprecated constructor in /in/9N5BR on line 6 Warning: Declaration of B::b(B $a) should be compatible with A::b(A $a) in /in/9N5BR on line 7 Fatal error: Uncaught ArgumentCountError: Too few arguments to function B::b(), 0 passed in /in/9N5BR on line 10 and exactly 1 expected in /in/9N5BR:7 Stack trace: #0 /in/9N5BR(10): B->b() #1 {main} thrown in /in/9N5BR on line 7
Process exited with code 255.
Output for 7.4.26
Warning: Declaration of B::b(B $a) should be compatible with A::b(A $a) in /in/9N5BR on line 7 Fatal error: Uncaught ArgumentCountError: Too few arguments to function B::b(), 0 passed in /in/9N5BR on line 10 and exactly 1 expected in /in/9N5BR:7 Stack trace: #0 /in/9N5BR(10): B->b() #1 {main} thrown in /in/9N5BR on line 7
Process exited with code 255.
Output for 7.3.32 - 7.3.33
Fatal error: Uncaught ArgumentCountError: Too few arguments to function B::b(), 0 passed in /in/9N5BR on line 10 and exactly 1 expected in /in/9N5BR:7 Stack trace: #0 /in/9N5BR(10): B->b() #1 {main} thrown in /in/9N5BR on line 7
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; B has a deprecated constructor in /in/9N5BR on line 6 Fatal error: Uncaught ArgumentCountError: Too few arguments to function B::b(), 0 passed in /in/9N5BR on line 10 and exactly 1 expected in /in/9N5BR:7 Stack trace: #0 /in/9N5BR(10): B->b() #1 {main} thrown in /in/9N5BR on line 7
Process exited with code 255.
Output for 7.0.0 - 7.0.20
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; B has a deprecated constructor in /in/9N5BR on line 6 Fatal error: Uncaught TypeError: Argument 1 passed to B::b() must be an instance of B, none given, called in /in/9N5BR on line 10 and defined in /in/9N5BR:7 Stack trace: #0 /in/9N5BR(10): B->b() #1 {main} thrown in /in/9N5BR on line 7
Process exited with code 255.
Output for 5.2.0 - 5.2.17, 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 B::b() must be an instance of B, none given, called in /in/9N5BR on line 10 and defined in /in/9N5BR on line 7
Process exited with code 255.
Output for 5.1.0 - 5.1.6
Fatal error: Argument 1 passed to B::b() must be an object of class B, called in /in/9N5BR on line 10 and defined in /in/9N5BR on line 7
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Fatal error: Argument 1 must be an object of class B in /in/9N5BR on line 7
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/9N5BR on line 3
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, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/9N5BR on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/9N5BR on line 3
Process exited with code 255.

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