[FIXED] How to check if file field is empty in codeigniter?

Issue

I have a form with a file field called image, but this field is not required.
When user don't choose any file in form, the do_upload() always return a error.
How can I check if user chosen a file before perform the upload action in my controller?

Solution

Please use empty()

if (empty($_FILES['userfile']['name'])) {
}

Answered By - Vinoth Babu