Need help with optimization

I create my plugin for import products in woocommerce.
I get data about products through the open API of my site.

The plugin works fine in a local environment and on most servers.

But there are customers who have encountered a problem. When uploading images for a product, an error occurs:
PHP Fatal error: Out of memory (allocated 232787968) (tried to allocate 33554440 bytes) in wp-includes/functions.php on line 2631

The error completely interrupts the script. At the same time, for some time this client did not have such a problem, and he was able to unload more than 7000 products without any problems

Image loading function

public static function saveFiles($arFiles, $type = 'previewUrl', $post_id = 0)
    {
        $settings = new Natali_Model_Settings();
        $isSingle = (int)$settings->get('image_color');

        try {
            $localFiles = [];

            foreach ($arFiles as &$file) {
                if ($type === 'previewUrl') {
                    $url = str_replace(
                        'https://static.natali37.ru/',
                        'https://static.natali37.ru/media/600/',
                        $file['url']);
                } else {
                    $url = $file['url'];
                }

                if ($isSingle) {
                    if ($file['mainColorImage']) {
                        $localFiles[crc32($url)] = self::getFileID($url, $post_id);
                    }
                } else {
                    $localFiles[crc32($url)] = self::getFileID($url, $post_id);
                }
            }

            return self::$files = $localFiles;
        } catch (\Exception $error) {
            Natali_Log::set($error->getMessage(), $error->getCode());
        }
    }

private static function getFileID($url, $post_id = 0)
    {
        if ($existId = self::findByName($url)) {
            return $existId;
        }

        return media_sideload_image($url, $post_id, null, 'id');
    }

private static function findByName($localFile)
    {
        $arFile = explode('/', $localFile);

        [$fileName, $fileExt] = explode('.', array_pop($arFile));
        $find = new \WP_Query([
                'post_type' => 'attachment',
                'name'      => $fileName
        ]);

        if ($find->have_posts()) {
            $attachments = $find->get_posts();
            foreach ($attachments as $attach) {
                return $attach->ID;
            }
        }

        return false;
    }

And although the error occurs. Almost all images get into media files and are attached to the product. But since the code is interrupted by an error. Then I fail to insert images into the product itself through the command

 @var $this->wc_api \Automattic\WooCommerce\Client
$this->wc_api->put("products/$this->wc_id", $this->wc_data)

You can view the full plugin code https://wordpress.org/plugins/natali/

• This topic was modified 3 years, 10 months ago by Натали Иваново - Ивановский трикотаж оптом.