How can I make chrome browser to show HTML input field selected file alongside it extension on mobile device

This is how selected files show on mobile chrome browser Image - https://i.stack.imgur.com/Sz7fI.jpg .So the uploads tend to fail because it doesn't recognize the file extension. But when I use desktop or laptop to upload file the browser shows the filename along with it extension so the file uploaded successfully. My question is that How do I go about this do I need to make some sort of php codings in other for the script to recognize or validate the file without extension? Because I tried uploading my video on YouTube and I noticed it didn't show the file extension after selecting file but the file uploaded successfully. Someone save me please am stuck

HERE IS MY HTML FILE

  if (isset($_SESSION['message']) && $_SESSION['message'])
  {
    printf('%s', $_SESSION['message']);
    unset($_SESSION['message']);
  }


<form method="POST" action="upload.php" enctype="multipart/form-data">
  <div>
    <span>Upload a File:</span>
    <input type="file" name="uploadedFile" />
  </div>

  <input type="submit" name="uploadBtn" value="Upload" />
</form>  


UPLOAD.PHP FILE

// message

$message = ' ';

if (isset($_POST['uploadBtn']) && $_POST['uploadBtn'] == 'Upload')

{

  if (isset($_FILES['uploadedFile']) && $_FILES['uploadedFile']['error'] === 

UPLOAD_ERR_OK)

{   

// get details of the uploaded file 

 $fileTmpPath = $_FILES['uploadedFile']['tmp_name'];


    $fileName = $_FILES['uploadedFile']['name'];

    $fileSize = $_FILES['uploadedFile']['size'];

    $fileType = $_FILES['uploadedFile']['type'];

    $fileNameCmps = explode(".", $fileName);

    $fileExtension = strtolower(end($fileNameCmps));

    // sanitize file-name
    $newFileName = md5(time() . $fileName) . '.' . $fileExtension;

    // check if file has one of the following extensions
    $allowedfileExtensions = array('mp3', 'ogg', '3gp', 'acc', 'wma');

    if (in_array($fileExtension, $allowedfileExtensions))
    {
      // directory in which the uploaded file will be moved
      $uploadFileDir = 'songs/';
      $dest_path = $uploadFileDir . $newFileName;

      if(move_uploaded_file($fileTmpPath, $dest_path)) 
      {
        $message ='File is successfully uploaded.';
      }
      else 
      {
        $message = 'There was some error moving the file to upload directory. Please make sure the upload directory is writable by web server.';
      }
    }
    else
    {
      $message = 'Upload failed. Allowed file types: ' . implode(',', $allowedfileExtensions);
    }
  }
  else
  {
    $message = 'There is some error in the file upload. Please check the following error.<br>';
    $message .= 'Error:' . $_FILES['uploadedFile']['error'];
  }
}
$_SESSION['message'] = $message;
header("Location: test.php");