PHP:
Notice: Undefined index: upfile in C:\xampp\htdocs\upload.php on line 6
Notice: Trying to access array offset on value of type null in C:\xampp\htdocs\upload.php on line 6
Notice: Undefined index: upfile in C:\xampp\htdocs\upload.php on line 7
Notice: Trying to access array offset on value of type null in C:\xampp\htdocs\upload.php on line 7
