class Uploader
{
    protected $path;
    protected $data = [];
    protected $formName;
    protected $maxSize = 5242880;

    public function __construct($path, $formName)
    {
        $this->path = $path;
        $this->formName = $formName;
        $this->fileValidate();
    }

    public function isUploaded()
    {
        if(!empty($_FILES[$this->formName]['name'])){
            return true;
        } else {
            return false;
        }
    }

    protected function setFile()
    {
        if ($this->isUploaded()) {
            $data = [];
            for ($i = 0; $i < count($_FILES[$this->formName]['name']); $i++) {
               $data[] = new UploadFile(
                       $_FILES[$this->formName]['name'][$i],
                       $_FILES[$this->formName]['tmp_name'][$i],
                       $_FILES[$this->formName]['error'][$i],
                       $_FILES[$this->formName]['type'][$i],
                       $_FILES[$this->formName]['size'][$i]
                       );
            }
            return $data;
        }
    }

    protected function fileValidate()
    {
        $data = $this->setFile();
        $this->data = [];

        foreach ($data as $id => $item) {
            if ($this->maxSize >= $item->getSize() &&
                    in_array($item->getType(), ['image/jpeg', 'image/png', 'image/gif'])) {
               if(getimagesize($item->getTmp())) {
                $this->data[] = $item;
            }
            }
        }
    }

    public function uploadFile()
    {
        foreach ($this->data as $file){
            if(0 == $file->getError()){
                move_uploaded_file($file->getTmp(), $this->path . $file->getFileName());
            }
        }
    }

}