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<?php abstract class Result { private final function __construct() { } public static function success() { return new Success(); } public static function failure() { return new Failure(); } } final class Success extends Result { public static function fakeIt() { return new self(); } } final class Failure extends Result { } var_dump(Result::success()); var_dump(Result::failure()); Success::fakeIt();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
object(Success)#1 (0) { } object(Failure)#1 (0) { } Fatal error: Uncaught Error: Call to private Result::__construct() from scope Success in /in/5aK01:22 Stack trace: #0 /in/5aK01(34): Success::fakeIt() #1 {main} thrown in /in/5aK01 on line 22
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.30, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
object(Success)#1 (0) { } object(Failure)#1 (0) { } Fatal error: Uncaught Error: Call to private Result::__construct() from context 'Success' in /in/5aK01:22 Stack trace: #0 /in/5aK01(34): Success::fakeIt() #1 {main} thrown in /in/5aK01 on line 22
Process exited with code 255.
Output for 5.2.6 - 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
object(Success)#1 (0) { } object(Failure)#1 (0) { } Fatal error: Call to private Result::__construct() from context 'Success' in /in/5aK01 on line 22
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.5
Fatal error: Call to private Result::__construct() from context 'Result' in /in/5aK01 on line 11
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CLASS in /in/5aK01 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_CLASS in /in/5aK01 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/5aK01 on line 3
Process exited with code 255.

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