upload 2x

<?php

$path = "./ress/upload/".$this->session->userdata('username')."/";
//for rename images
$banner = $_FILES['banner']['name'];
$banner = preg_replace('#[^a-z.0-9]‪#‎i‬', '', $banner);
$boom = explode(".", $banner);
$ext = end($boom);
$banner = time("Y-m-d H:i:s").rand().".".$ext;

//upload
$uploadfile = $path . basename($banner);
$filepreparation = array();
if (copy($_FILES['banner']['tmp_name'], $uploadfile))
{
   echo "<br>upload : $uploadfile";
    foreach ($_FILES["filespre"]["name"] as $key => $error)
    {

            $error_codes[$error];
            //for rename images
            $fileName = $_FILES["filespre"]["name"][$key]; // The file name
            $fileTmpLoc = $_FILES["filespre"]["tmp_name"][$key]; // File in the PHP tmp folder
            $fileName = preg_replace('#[^a-z.0-9]#i', '', $fileName);
            $kaboom = explode(".", $fileName); // Split file name into an array using the dot
            $fileExt = end($kaboom); // Now target the last array element to get the file extension
            $fileName = @mktime()."-$key.".$fileExt;

            //$moveResult = move_uploaded_file($fileTmpLoc, $path.$fileName);

            if (!copy ($fileTmpLoc, $path.$fileName)) {
                echo "ERROR: File not uploaded. Try again.";
                exit();
            }else{
                $filepreparation[] = $fileName;
                              echo "<br>upload : $path.$fileName";
            }



    }
}else{
    die('gagal copy');

}

?>