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<?php function test(Foo $foo) { $foo = new Bar; echo get_class($foo); } test(); class Foo {} class Bar {}
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Fatal error: Uncaught ArgumentCountError: Too few arguments to function test(), 0 passed in /in/j27Gj on line 7 and exactly 1 expected in /in/j27Gj:2 Stack trace: #0 /in/j27Gj(7): test() #1 {main} thrown in /in/j27Gj on line 2
Process exited with code 255.
Output for 7.0.0 - 7.0.33
Fatal error: Uncaught TypeError: Argument 1 passed to test() must be an instance of Foo, none given, called in /in/j27Gj on line 7 and defined in /in/j27Gj:2 Stack trace: #0 /in/j27Gj(7): test() #1 {main} thrown in /in/j27Gj on line 2
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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
Catchable fatal error: Argument 1 passed to test() must be an instance of Foo, none given, called in /in/j27Gj on line 7 and defined in /in/j27Gj on line 2
Process exited with code 255.
Output for 5.1.0 - 5.1.6
Fatal error: Argument 1 passed to test() must be an object of class Foo, called in /in/j27Gj on line 7 and defined in /in/j27Gj on line 2
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Fatal error: Argument 1 must be an object of class Foo in /in/j27Gj on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/j27Gj 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
Parse error: parse error, unexpected T_STRING, expecting ')' in /in/j27Gj on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/j27Gj on line 2
Process exited with code 255.

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