What is if($_FILES)

PHP
1

simple question

what is the meaning and purpose of this:

if($_FILES)

thanks, cheers!

2

It is a way to check if files were uploaded during the request (via <input type="file"> in a form or similar). When files are uploaded, information about those files is stored in the $_FILES variable, which is an array. If no files are uploaded the array is empty and if ($_FILES) would not fire (since an empty array cast to a boolean is false). If files are uploaded the array would contain values and if ($_FILES) would fire (since any non-empty array cast to a boolean is true).

Better would be (IMHO): if (count($_FILES) > 0) (because I don’t like implicit casting)