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<?php class A { function __invoke($i) { return $i *2; } } $a = new A(); function test(\Closure $b) { var_dump($b(5)); } test($a);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught TypeError: test(): Argument #1 ($b) must be of type Closure, A given, called in /in/nf6WB on line 15 and defined in /in/nf6WB:11 Stack trace: #0 /in/nf6WB(15): test(Object(A)) #1 {main} thrown in /in/nf6WB on line 11
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: Argument 1 passed to test() must be an instance of Closure, instance of A given, called in /in/nf6WB on line 15 and defined in /in/nf6WB:11 Stack trace: #0 /in/nf6WB(15): test(Object(A)) #1 {main} thrown in /in/nf6WB on line 11
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Catchable fatal error: Argument 1 passed to test() must be an instance of Closure, instance of A given, called in /in/nf6WB on line 15 and defined in /in/nf6WB on line 11
Process exited with code 255.
Output for 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/nf6WB on line 11 Catchable fatal error: Argument 1 passed to test() must be an instance of Closure, instance of A given, called in /in/nf6WB on line 15 and defined in /in/nf6WB on line 11
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/nf6WB on line 11 Fatal error: Class 'Closure' not found in /in/nf6WB on line 11
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/nf6WB on line 11 Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/nf6WB on line 11
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
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/nf6WB on line 11 Parse error: parse error, unexpected T_STRING, expecting ')' in /in/nf6WB on line 11
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/nf6WB on line 11 Parse error: parse error, expecting `')'' in /in/nf6WB on line 11
Process exited with code 255.

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