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<?php final class CanNotSetProperties extends RuntimeException { public function __construct() { parent::__construct("You can not set properties on Immutable objects."); } } final class ConstructorIsVisible extends RuntimeException { public function __construct() { parent::__construct("Immutable objects can not expose the constructor."); } } final class CanNotBeCloned extends RuntimeException { public function __construct() { parent::__construct("Immutable objects can not be cloned."); } } trait Immutable { final public function __set($property, $value) { throw new CanNotSetProperties; } final public function __clone() { throw new CanNotBeCloned; } final private function __construct() { throw new ConstructorIsVisible; } } final class Test { use Immutable; } $test = new Test; $test->__construct();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.1, 8.3.3 - 8.3.6
Fatal error: Uncaught Error: Call to private Test::__construct() from global scope in /in/GDfWq:49 Stack trace: #0 {main} thrown in /in/GDfWq on line 49
Process exited with code 255.
Output for 8.3.2
Warning: Private methods cannot be final as they are never overridden by other classes in /in/GDfWq on line 45 Fatal error: Uncaught Error: Call to private Test::__construct() from global scope in /in/GDfWq:49 Stack trace: #0 {main} thrown in /in/GDfWq on line 49
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 Error: Call to private Test::__construct() from invalid context in /in/GDfWq:49 Stack trace: #0 {main} thrown in /in/GDfWq on line 49
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Call to private Test::__construct() from invalid context in /in/GDfWq on line 49
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_STRING in /in/GDfWq on line 27
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/GDfWq on line 27
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CLASS in /in/GDfWq 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/GDfWq on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/GDfWq on line 3
Process exited with code 255.
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