Convert bitrix resize_cache to webp

convert.php

<?php

use Bitrix\Main\Diag\Debug;

Debug::startTimeLabel('convert');
$iterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator(\Bitrix\main\Application::getDocumentRoot().'/upload/resize_cache'));

$files = [];
foreach ($iterator as $entity) {
    if ($entity->isDir()) {
        continue;
    }

    $origin = $entity->getRealPath();
    $webp = $entity->getRealPath().'.webp';
    if (\file_exists($webp)) {
        continue;
    }

    $ext = \mb_strtolower($entity->getExtension());
    if ('png' === $ext || 'jpg' === $ext || 'jpeg' === $ext) {
        if ('png' === $ext) {
            $image = \imagecreatefrompng($origin);
        } else {
            $image = \imagecreatefromjpeg($origin);
        }

        if ($image) {
            \imagewebp($image, $webp);
        } else {
            \dump('error: '.$origin);
        }
    }
}
Debug::endTimeLabel('convert');

\dump(Debug::getTimeLabels());