<?php
each:
_::each([1, 2, 3], function ($i) {
echo $i;
});
// => 123
_::each((object) ['a' => 1, 'b' => 2, 'c' => 3], function ($value, $key) {
echo "{$key} => {$value}\n";
});
// => displays each pair in turn
eachReference:
$numbers = [1, 2, 3];
_::eachReference($numbers, function (&$value) {
$value *= $value;
});
// => [1,4,9]
map:
_::map([1, 2, 3], function ($value) {
return $value - 1;
});
// => [0,1,2]
reduce:
$sum = _::reduce([1, 2, 3], function ($memo, $num) {
return $memo + $num;
}, 0);
// => 6
reduceRight:
$list = [[0, 1], [2, 3], [4, 5]];
$flat = _::reduceRight($list, function ($a, $b) {
return array_merge($a, $b);