Admin page: form with enctype=”multipart/form-data” does not transfer its data
I’m googeling for hours now but can’t find anything to my problem:
I’m building a plugin and want to embed a file input in its admin page. For this reason I’m giving the form-element the attribute
enctype="multipart/form-data" and I’m trying to access the file via
$_FILES, but it is empty!
enctype="multipart/form-data" at least the filename and the other form fields appear in
I’m wondering if WordPress is removing direct access to these superglobals or somehow else preventing this regular way of uploading files.
I’ve read a lot about hooks and posting all forms to admin_post.php or admin_ajax.php but since my upload functionality is located in a class that’s part of a big library with autoloading etc. it’s not an option for me. My form is sending it’s data to the current admin page (I tried it without the
action-Attribute but also specifying it
action="admin.php?page=XYZ" but nothing worked).
I would be thankful for every hint!