$_SESSION['filest'] = array();

    if (isset($_FILES)) {
    $total = count($_FILES['file']['name']);
    $file_uploaded = $_FILES['file']['name'];
       for($i=0; $i<$total; $i++) {

    $_SESSION['filest'][] = $_FILES['file']['name'][$i];
     ?>
    <?php }  }

     var_dump($_SESSION['filest']);
     ?>

<form id="htmlForm" action="" method="post">
    Message: <input id="fileuploads" type="file" name="file[]" value="Hello HTML" multiple>
    <input type="submit" value="Echo as HTML" />
</form>