关于php购物车删除的代码

//调用$items = $cart->remove($_GET[✀key✀]);//函数public function remove($pid){ for($i=0;$i<count($this->items);$i++){ $item=$this->items[$i]; $p=$item->product; if($p->id==$pid){ unset($this->item[$i]); break; } } }删除不了，请问是哪里的问题？？⼀⼀接图片的 if($p->id == $pid) { $item->count = $count; break; } } }}class CartItem { private $product; ⼀⼀产品 private $count; ⼀⼀数量 public function __construct(Product $product,$count,$cart) { $this->product = $product; $this->count = $count; } public function __get($n) { return $this->$n; } public function __set($n,$v) { $this->$n = $v; }}?>