$upload_img->upload_dir = 'images/';
            // "files" is the folder for the uploaded files (you have to create this folder)
            $upload_img->extensions = array(".jpg");
            // specify the allowed extensions here
            $upload_img->max_length_filename = 1000;
            // change this value to fit your field length in your database (standard 100)
            $upload_img->rename_file = true;
            $upload_img->the_temp_file = $_FILES[$file]['tmp_name'];
            $upload_img->the_file = $_FILES[$file]['name'];
            $upload_img->http_error = $_FILES[$file]['error'];
            if ($upload_img->upload()) {
                // new name is an additional filename information, use this to rename the uploaded file
                $full_path = $upload_img->upload_dir . $upload_img->file_copy;
                $imagename = $upload_img->get_uploaded_file_info($full_path);
            }
        } else {
            $imagename = "";
        }
        return $imagename;
    }
}
$upload = new file_upload();
if ($_FILES['image']['size'] == 0) {
    header("location: image-cropping.php?er=1");
} else {
    $image_name = $upload->image_upload('image');
}
session_start();
$_SESSION['SUID'] = date("Ymdhi");
$_SESSION['SIMG'] = $image_name;
header("location: image-cropping.php");