Online PHP editor | output for YGGAZ

Output for 8.3.0 - 8.3.6: Deprecated: Calling get_class() without arguments is deprecated in /in/YGGAZ on line 2 Fatal error: Uncaught TypeError: get_class(): Argument #1 ($object) must be of type object, null given in /in/YGGAZ:2 Stack trace: #0 /in/YGGAZ(2): B->bar() #1 {main} thrown in /in/YGGAZ on line 2
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18: Fatal error: Uncaught TypeError: get_class(): Argument #1 ($object) must be of type object, null given in /in/YGGAZ:2 Stack trace: #0 /in/YGGAZ(2): B->bar() #1 {main} thrown in /in/YGGAZ on line 2
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: get_class() expects parameter 1 to be object, null given in /in/YGGAZ on line 2 Warning: Use of undefined constant self - assumed 'self' (this will throw an Error in a future version of PHP) in /in/YGGAZ on line 2 Warning: get_class() expects parameter 1 to be object, string given in /in/YGGAZ on line 2 array(0) { } string(1) "B" bool(false) bool(false) string(1) "B"
Output for 7.1.0 - 7.1.33: Notice: Use of undefined constant self - assumed 'self' in /in/YGGAZ on line 2 Warning: get_class() expects parameter 1 to be object, string given in /in/YGGAZ on line 2 array(0) { } string(1) "B" string(1) "B" bool(false) string(1) "B"
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33: Notice: Use of undefined constant self - assumed 'self' in /in/YGGAZ on line 2 Warning: get_class() expects parameter 1 to be object, string given in /in/YGGAZ on line 2 array(1) { ["this"]=> object(B)#1 (0) { } } string(1) "B" string(1) "B" bool(false) string(1) "B"
Output for 4.4.2 - 4.4.9, 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/YGGAZ on line 2
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, 5.0.0 - 5.0.5: Parse error: parse error, unexpected T_STRING in /in/YGGAZ on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/YGGAZ on line 2
Process exited with code 255.