how to check if the file field is empty?

Question

I am having a hard time using $_FILES

I want to check if it's empty or not and if it's not empty then it shouldn't try and uploading the file. How do I check this?

Answer 1

Here's what worked for me:

if ($_FILES['theFile']['tmp_name']!='') {
    // do this, upload file
} // if no file selected to upload, file isn't uploaded.