Before you try to process the file, you need to make sure that your $err value is equivalent to _________

A. UPLOAD_ERR_OK

B. UPLOAD_NO_ERR

C. UPLOAD_ERR_NO_OK

D. UPLOAD_ERR

Answer: Option A

Solution(By Examveda Team)

When you’re dealing with files uploaded through an HTML form, you have access to a special constant called UPLOAD_ERR_OK that tells you whether a file uploaded successfully.