Add Co\map() function

[leocavalcante]

Declaration

<?php
Swoole\Coroutine\map(array $list, callable $fn, float $timeout = -1): array

Parameters

• list
  • An array to run through the $fn function
• fn
  • A callable to run for each element in each array
• timeout
  • The timeout of the batch tasks

Return

• array
  • Returns an array containing the results of applying the fn to the corresponding list

Description

Conceptually similar to batch() and parallel(), but behaves more like array_map(), each element will be mapped within a coroutine.

Example

<?php declare(strict_types=1);

use Swoole\Coroutine;
use function Swoole\Coroutine\map;

function fatorial(int $n): int
{
    return array_product(range($n, 1));
}

Coroutine\run(function () {
    $results = map([2, 3, 4], 'fatorial'); 
    print_r($results); // 2 6 24
});