I used
<input type="file" name="datafile" class="dropdown" required/>
in my HTML form. I select one file from any other location than www directory. I get one PHP error like
faild to open stream : no such file and directory available in
c:/wamp/www/myproject/abc.php
try using enctype="multipart/form-data" in your form when you are uploading files. without the code, its hard to tell, why that specific error has occurred. So, please post your code with your question if the error still persists