Allow product image with ID > 9 999 999 in PrestaShop

PageNotFoundController.php

<?php

class PageNotFoundController extends PageNotFoundControllerCore
{
    public function initContent()
    {
        list($filename) = explode('?', substr($_SERVER['REQUEST_URI'], 6));
        if (preg_match('/([0-9]+)(\-[_a-zA-Z0-9-]*)?\/.*\.jpg/', $filename, $matches)) {
            $path = _PS_ROOT_DIR_.'/img/p/'.implode('/', str_split($matches[1], 1)).'/'.$matches[1].$matches[2].'.jpg';
            if (file_exists($path)) {
                header('Content-Type: '.mime_content_type($path)?:'image/jpg');
                readfile($path);
                die();
            } else {
                header('HTTP/1.1 404 Not Found');
                header('Status: 404 Not Found');
                header('Content-Type: image/gif');
                readfile(_PS_ROOT_DIR_.'/img/404.gif');
                die();
            }
        }
        return parent::initContent();
    }
}