二进制-html表单上传file，php获取然后保存到数据

                        
    php:    require_once('mysql_helper.php');$pic = $_POST['pic'];$path = './Users/e-bag4/Desktop'. $_FILES['pic']['name'];if (move_uploaded_file($_FILES['pic']['tmp_name'],$path)) { $sql="insert into e_user(pic)values('$path')";    if(execute_data($sql)){         echo "上传成功!!";    }else{        echo "文件上传失败!!";        }}    我想问一下我这代码中需要怎么改进一下