无法在php中获取上传文件的名称[复制]

i wrote this code some time ago and it was working perfectly but suddenly stopped working, the code cant seem to retrieve the name of the uploaded file, however if i change the name to other attributes of the file like size and type, it works perfectly fine. any help would be appreciated. thanks

i know the problem is not from the html file so i did not include. the reason im saying that is, the other file attributes like size and type works perfectly fine and as a matter of fact this same code was working fine some time ago.

<?php


try{

    include("dbconnect.php");


    if(isset($_POST['uploadbtn'])){
    $code        = $_POST['code'];
    $atname  = trim($_POST['artistname']);
    $stittle  = trim($_POST['songtittle']);
    $dcription = trim($_POST['describe']);  

    $songtittle = filter_var($stittle,FILTER_SANITIZE_STRING);

    $artistname = filter_var($atname,FILTER_SANITIZE_STRING);

    $description = filter_var($dcription,FILTER_SANITIZE_STRING);


    $name     = $_FILES['audio']['name'];

    $imname     = $_FILES['image']['name'];




    try{

        mysqli_query($connect,"INSERT into musicfiles (music_id,uploadCode,artistName,songTittle,audio,image,fileDescription) VALUES ('','$code','$artistname','$songtittle','$name','$imname','$description')") or die("error");

        echo "entered successfully";

        }

        catch(Exception $error){

            echo "".$error;
        }

        }



} 

 catch(Exception $exe){

    echo "".$exe;

}

mysqli_close($connect);


?>

</div>

Try

$_FILES['name_of_your_input']['name']

Or check your form need to be

<form enctype="multipart/form-data" action="__URL__" method="POST">