Online PHP editor | output for 82aE5

<?php function test(callable $fn){ $curried = function(...$currArgs) use(&$fn, &$curried){ $reflection = new ReflectionFunction($fn); $args = count($reflection->getParameters()); if(count($currArgs) == $args){ return $fn(...$currArgs); }else{ return function(...$currArgs2) use( $fn, $currArgs, &$curried){ return $curried(...array_merge($currArgs, $currArgs2)); }; } }; return $curried; } $c = test(fn($x, $y, $z) => $x + $y + $z); echo $c(10)(20,30),"\n"; echo $c(10,20)(30),"\n"; echo $c(10,20,30),"\n";