PHP文件上传不'；t上传

嗨，我正试图上传一个图像，但它似乎不工作。我想我的语法是对的。你能帮我吗？谢谢

     $image_path    = "/uploads/" . strtolower($_FILES["profpic"]["name"]);
     //$image_path is just that I'm getting the file name so that I can get the path and save to the database

     $target_path   = 'uploads/' . basename( $_FILES['profpic']['name']); 
     move_uploaded_file($_FILES['profpic']['tmp_name'], $target_path);

这里是它应该去的地方：

---

C:\xampp\htdocs\noel\uploads

在

$target\u path

$target_path   = $_SERVER['DOCUMENT_ROOT'].'/noel/uploads/' . basename( $_FILES['profpic']['name']);