Attachment not in body, not showing in parts

This code seems to check the 'parts' array to see the length. I receive an email that clearly has a small video attached, yet, when I print out the parts array, it shows 0, thus this code doesn't run. I am contacting an exchange server. In outlook, the same email just shows the video as an 'attachment' , but the video isn't in the body area of the email. Please let me know how to access these types of attachments.

I found what was causing it to not work.

In the line:
$structure = imap_fetchstructure($mbox, $jk , FT_UID);

I took out the last argument FT_UID:
$structure = imap_fetchstructure($mbox, $jk );

and now it works.

I don't have a 100% explanation for it, but another script i saw didn't have this FT_UID argument, so thats why I tried taking it out. This made me lose many hours!