PHP图片上传，保存到指定目录

// 图片上传
    public function uploadImg()
    {
        $imgname = $_FILES['myfile']['name'];
        $tmp = $_FILES['myfile']['tmp_name'];

        $filepath = APPPATH . "../PAYLOG/PICTURE/";
        if (!is_dir($filepath)) { //判断目录是否存在 不存在就创建
            mkdir($filepath, 0777, true);
        }
        if (move_uploaded_file($tmp, $filepath . $imgname)) {
            echo "上传成功";
        } else {
            echo "上传失败";
        }
    }