小编Avi*_*pta的帖子

我正在尝试获取 WooCommerce 的所有父类别，而不是子类别。

$terms = get_terms(['taxonomy' => 'product_cat','hide_empty' => false, 'parent' => 0]);

但它不起作用。我怎样才能只获得父类别？

 $uploaddir  = wp_upload_dir();
 $file       = $_FILES['panpdf'];
 $uploadfile = $uploaddir['path'] . '/' . basename($file['name']);

 move_uploaded_file($file['tmp_name'], $uploadfile);
 $filename    = basename($uploadfile);
 $wp_filetype = wp_check_filetype(basename($filename), null);
 $attachment  = array(
                   'post_mime_type' => $wp_filetype['type'],
                   'post_title' => preg_replace('/\.[^.]+$/', '', $filename),
                    'post_content' => '',
                    'post_status' => 'inherit',
                    'menu_order' => $_i + 1000
                                );
 $update_img  = wp_insert_attachment($attachment, $uploadfile);

这工作正常并上传文件,但它上传重复,如果文件名已存在于上传目录中,我想在文件名末尾添加数字.我如何实现这一目标.请帮我.

提前致谢.