<?php

declare(strict_types=1);

namespace PhpSchool\CliMenu\Util;

function mapWithKeys(array $array, callable $callback) : array

{

$arr = array_combine(

array_keys($array),

array_map($callback, array_keys($array), $array)

);

assert(is_array($arr));

return $arr;

}

function filter(array $array, callable $callback) : array

{

return array_filter($array, function ($v, $k) use ($callback) {

return $callback($k, $v);

}, ARRAY_FILTER_USE_BOTH);

}

function each(array $array, callable $callback) : void

{

foreach ($array as $k => $v) {

$callback($k, $v);

}

}

function max(array $items) : int

{

return count($items) > 0 ? \max($items) : 0;

}

function collect(array $items) : Collection

{

return new Collection($items);

}