Online PHP editor | output for GqiMc

Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: int(1)
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30: Fatal error: Uncaught ReflectionException: Trying to invoke private method Foo::bar() from scope ReflectionMethod in /in/GqiMc:10 Stack trace: #0 /in/GqiMc(10): ReflectionMethod->invokeArgs(NULL, Array) #1 /in/GqiMc(13): Foo::{closure}() #2 {main} thrown in /in/GqiMc on line 10
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28: Fatal error: Uncaught exception 'ReflectionException' with message 'Trying to invoke private method Foo::bar() from scope ReflectionMethod' in /in/GqiMc:10 Stack trace: #0 /in/GqiMc(10): ReflectionMethod->invokeArgs(NULL, Array) #1 /in/GqiMc(13): Foo::{closure}() #2 {main} thrown in /in/GqiMc on line 10
Process exited with code 255.
Output for 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/GqiMc on line 10
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Parse error: syntax error, unexpected T_FUNCTION in /in/GqiMc on line 9
Process exited with code 255.
Output for 5.0.0 - 5.0.5: Parse error: parse error, unexpected T_FUNCTION in /in/GqiMc on line 9
Process exited with code 255.
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/GqiMc 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: Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/GqiMc on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/GqiMc on line 5
Process exited with code 255.