Online PHP editor | output for GM5Oo

Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.7: Fatal error: Uncaught TypeError: get_class(): Argument #1 ($object) must be of type object, string given in /in/GM5Oo:10 Stack trace: #0 [internal function]: {closure}('Hello', 0) #1 /in/GM5Oo(9): array_walk(Array, Object(Closure)) #2 {main} thrown in /in/GM5Oo on line 10
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28: Fatal error: Uncaught TypeError: get_class(): Argument #1 ($object) must be of type object, string given in /in/GM5Oo:10 Stack trace: #0 [internal function]: {closure}('Hello', 0) #1 /in/GM5Oo(16): array_walk(Array, Object(Closure)) #2 {main} thrown in /in/GM5Oo on line 10
Process exited with code 255.
Output for 7.1.0 - 7.1.25, 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, string given in /in/GM5Oo on line 10 HelloClosure Fatal error: Uncaught Error: Using $this when not in object context in /in/GM5Oo:12 Stack trace: #0 [internal function]: {closure}(Object(Closure), 1) #1 /in/GM5Oo(16): array_walk(Array, Object(Closure)) #2 {main} thrown in /in/GM5Oo on line 12
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33: Warning: get_class() expects parameter 1 to be object, string given in /in/GM5Oo on line 10 HelloClosure Notice: Undefined variable: this in /in/GM5Oo on line 12 ,world
Output for 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/GM5Oo on line 7
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Parse error: syntax error, unexpected T_FUNCTION in /in/GM5Oo on line 5
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_FUNCTION in /in/GM5Oo on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/GM5Oo on line 5
Process exited with code 255.