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<?php class dog { public function do_drool() { echo "Sluuuuurp\n"; } } class cat { } function drool(dog $some_dog) { $some_dog->do_drool(); } $poppy = new cat(); drool($poppy); ?>
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: drool(): Argument #1 ($some_dog) must be of type dog, cat given, called in /in/F45bM on line 15 and defined in /in/F45bM:10 Stack trace: #0 /in/F45bM(15): drool(Object(cat)) #1 {main} thrown in /in/F45bM on line 10
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 drool() must be an instance of dog, instance of cat given, called in /in/F45bM on line 15 and defined in /in/F45bM:10 Stack trace: #0 /in/F45bM(15): drool(Object(cat)) #1 {main} thrown in /in/F45bM on line 10
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 - 5.6.40
Catchable fatal error: Argument 1 passed to drool() must be an instance of dog, instance of cat given, called in /in/F45bM on line 15 and defined in /in/F45bM on line 10
Process exited with code 255.
Output for 5.1.0 - 5.1.6
Fatal error: Argument 1 passed to drool() must be an instance of dog, called in /in/F45bM on line 15 and defined in /in/F45bM on line 10
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Fatal error: Argument 1 must be an instance of dog in /in/F45bM on line 10
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/F45bM 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/F45bM 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/F45bM on line 3
Process exited with code 255.

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