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<?php function test(callable $fn){ $reflection = new ReflectionFunction($fn); $args = count($reflection->getParameters()); $curried = function(...$currArgs) use($args, $fn){ if(count($currArgs) == $args){ return $fn(...$currArgs); }else{ return function(...$currArgs2) use($args, $fn, $currArgs){ return $curried(array_merge($currArgs, $currArgs2)); }; } }; return $curried; } $c = test(fn($x, $y, $z) => $x + $y + $z); echo $c(10)(20,30);
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.13
Warning: Undefined variable $curried in /in/PQsrh on line 12 Fatal error: Uncaught Error: Value of type null is not callable in /in/PQsrh:12 Stack trace: #0 /in/PQsrh(24): {closure}(20, 30) #1 {main} thrown in /in/PQsrh on line 12
Process exited with code 255.
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