Pressbooks\Modules\Import\WordPress\Wxr::searchForMetaValue PHP Метод

    protected function searchForMetaValue($meta_key, array $postmeta)
    {
        if (empty($postmeta)) {
            return '';
        }
        foreach ($postmeta as $meta) {
            // prefer this value, if it's set
            if ($meta_key == $meta['key']) {
                return $meta['value'];
            }
        }
        return '';
    }