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<?php class Weird { public static function test() { var_dump(is_a(isset($this) ? $this : self, __CLASS__)); } } Weird::test(); $w = new Weird; $w->test();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught Error: Undefined constant "self" in /in/9nrnO:5 Stack trace: #0 /in/9nrnO(10): Weird::test() #1 {main} thrown in /in/9nrnO on line 5
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Fatal error: Uncaught Error: Undefined constant "self" in /in/9nrnO:5 Stack trace: #0 /in/9nrnO(10): Weird::test() #1 {main} thrown in /in/9nrnO 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/9nrnO on line 5 bool(false) Warning: Use of undefined constant self - assumed 'self' (this will throw an Error in a future version of PHP) in /in/9nrnO on line 5 bool(false)
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
Notice: Use of undefined constant self - assumed 'self' in /in/9nrnO on line 5 bool(false) Notice: Use of undefined constant self - assumed 'self' in /in/9nrnO on line 5 bool(false)

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