web-development/zoesch.de/ImageUpload/classes/Uploader.class.php

<?php

class Uploader
{
    private $filename;
    private $fileData;
    private $destination;

    //declare a constructor method
    public function __construct($key)
    {
        $this->filename = $_FILES[$key]['name'];
        $this->fileData = $_FILES[$key]['tmp_name'];
    }

    public function saveIn($folder)
    {
        $this->destination = $folder;
    }
    public function save()
    {
        $folderIsWriteAble = is_writable($this->destination);
        if ($folderIsWriteAble) {
            $name = "$this->destination/$this->filename";
            $succes = move_uploaded_file($this->fileData, $name);
        } else {
            trigger_error("cannot write to $this->destination");
            $succes = false;
        }

        return $succes;
    }
}