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<?php namespace test\foo; class Bar { public static function className() { $class = self; return (new \ReflectionClass($class))->getShortName(); } } echo \test\foo\Bar::className(), PHP_EOL;
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Fatal error: Uncaught Error: Undefined constant "test\foo\self" in /in/QGbjE:5 Stack trace: #0 /in/QGbjE(10): test\foo\Bar::className() #1 {main} thrown in /in/QGbjE on line 5
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant self - assumed 'self' (this will throw an Error in a future version of PHP) in /in/QGbjE on line 5 Fatal error: Uncaught ReflectionException: Class self does not exist in /in/QGbjE:6 Stack trace: #0 /in/QGbjE(6): ReflectionClass->__construct('self') #1 /in/QGbjE(10): test\foo\Bar::className() #2 {main} thrown in /in/QGbjE on line 6
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33
Notice: Use of undefined constant self - assumed 'self' in /in/QGbjE on line 5 Fatal error: Uncaught ReflectionException: Class self does not exist in /in/QGbjE:6 Stack trace: #0 /in/QGbjE(6): ReflectionClass->__construct('self') #1 /in/QGbjE(10): test\foo\Bar::className() #2 {main} thrown in /in/QGbjE on line 6
Process exited with code 255.
Output for 5.4.1 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Notice: Use of undefined constant self - assumed 'self' in /in/QGbjE on line 5 Fatal error: Uncaught exception 'ReflectionException' with message 'Class self does not exist' in /in/QGbjE:6 Stack trace: #0 /in/QGbjE(6): ReflectionClass->__construct('self') #1 /in/QGbjE(10): test\foo\Bar::className() #2 {main} thrown in /in/QGbjE on line 6
Process exited with code 255.

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