Online PHP editor | refs for uJnif

@ 2017-06-02T10:38:50Z

<?php

function o($f, $g)
{
    return function (...$x) {
        return $f(...$g(...$x));
    };
}

$f = function ($a, $b) {
    return [$a + $b, $a * $b];
};

$g = function (...$n) {
    return array_map();
};