1<?php
2
3/*
4 * This file is part of the Symfony package.
5 *
6 * (c) Fabien Potencier <fabien@symfony.com>
7 *
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
10 */
11
12use Symfony\Polyfill\Php73 as p;
13
14if (PHP_VERSION_ID >= 70300) {
15    return;
16}
17
18if (!function_exists('is_countable')) {
19    function is_countable($var) { return is_array($var) || $var instanceof Countable || $var instanceof ResourceBundle || $var instanceof SimpleXmlElement; }
20}
21if (!function_exists('hrtime')) {
22    require_once __DIR__.'/Php73.php';
23    p\Php73::$startAt = (int) microtime(true);
24    function hrtime($asNum = false) { return p\Php73::hrtime($asNum); }
25}
26if (!function_exists('array_key_first')) {
27    function array_key_first(array $array) { foreach ($array as $key => $value) { return $key; } }
28}
29if (!function_exists('array_key_last')) {
30    function array_key_last(array $array) { end($array); return key($array); }
31}
32