attach multiple file in email

You can attach as many files as you like, just cascade them.

$this->email->attach($full_path_and_name);
$this->email->attach($full_path_and_name);

In your case if your using the FILES array you would need to attach them
inside of a for loop, getting the file path and name into a string variable.

Thanks for your answer and for have help me.

I have solved adding

PHP Code:

$this->email->attach($upload_data['full_path']); 


  inside my loop for, under the variable 

PHP Code:

$upload_data = $this->upload->data(); 


Now i receive all attachments.