Syntax for PHP is_uploaded_file() Function
bool is_uploaded_file (file_name)

• It states that whether the given file as argument is uploaded via HTTP POST protoocol or not.

Code of PHP is_uploaded_file() Function

<?php
    $b1=is_uploaded_file("aa.txt");
    if($b1)
      echo "uploaded via http post";
    if(!$b1)
      echo "not uploaded via http post";
?>

Output
not uploaded via http post

Related Tags for PHP function is_uploaded_file() and example :