3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function reduce(int $a, int $b, callable $reducer) : int { return $reducer($a, $b); } reduce(1, 2, function($a, $b, $c) { return $a + $b + 'c'; });
based on a7eTu
Output for 7.1.0 - 7.2.0
Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 2 passed in /in/va0jA on line 4 and exactly 3 expected in /in/va0jA:7 Stack trace: #0 /in/va0jA(4): {closure}(1, 2) #1 /in/va0jA(9): reduce(1, 2, Object(Closure)) #2 {main} thrown in /in/va0jA on line 7
Process exited with code 255.
Output for 7.0.0 - 7.0.20
Warning: Missing argument 3 for {closure}(), called in /in/va0jA on line 4 and defined in /in/va0jA on line 7
Output for 5.1.0 - 5.6.28
Parse error: syntax error, unexpected ':', expecting '{' in /in/va0jA on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected ':', expecting '{' in /in/va0jA on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/va0jA on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting ')' in /in/va0jA on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/va0jA on line 3
Process exited with code 255.