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<?php class OtherClass extends MyClass { public static $my_static = 'static var'; public static function doubleColon() { echo parent::CONST_VALUE . "\n"; echo self::$my_static . "\n"; } } $classname = 'OtherClass'; echo $classname::doubleColon(); // As of PHP 5.3.0 OtherClass::doubleColon();
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 Error: Class "MyClass" not found in /in/ri9ql:3 Stack trace: #0 {main} thrown in /in/ri9ql on line 3
Process exited with code 255.
Output for 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Class 'MyClass' not found in /in/ri9ql:3 Stack trace: #0 {main} thrown in /in/ri9ql on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33
Fatal error: Class 'MyClass' not found in /in/ri9ql on line 3
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Class 'MyClass' not found in /in/ri9ql on line 4
Process exited with code 255.

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