- Output for 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
- Deprecated: f(): Implicitly marking parameter $f as nullable is deprecated, the explicit nullable type must be used instead in /in/8QTd4 on line 2 null test
- 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, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30
- null test
- Output for 5.3.0 - 5.3.29
- null
Catchable fatal error: Argument 1 passed to f() must be an instance of callable, instance of Closure given, called in /in/8QTd4 on line 4 and defined in /in/8QTd4 on line 2
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, expecting ')' in /in/8QTd4 on line 4
Process exited with code 255. - Output for 5.0.0 - 5.0.5
- Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/8QTd4 on line 4
Process exited with code 255. - Output for 4.4.2 - 4.4.9
- Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/8QTd4 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
- Parse error: parse error, unexpected T_STRING, expecting ')' in /in/8QTd4 on line 2
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error, expecting `')'' in /in/8QTd4 on line 2
Process exited with code 255.