php传递post参数乱码怎么办-环球视点

html:<form action="__APP__/ShoppingCart/add" method="POST"><br/><b>{$pro_name}</b><br/><br/>价格：￥{$pro_price}<br/><br/>已售出：{$pro_sale}件数量<input type="text" size="2" name="pro_num" value="1"/><input type="submit" value="加入购物车" /><input type="hidden" name="pro_id" value="{$pro_id}" /><input type="hidden" name="pro_name" value="{$pro_name}" /><input type="hidden" name="pro_price" value="{$pro_price}" /></form>action:public function add(){$user = session("user_name");if(session("user_name")){header("Content-Type:text/html;charset=utf8");request.setCharacterEncoding("UTF-8");$common = D("Common");$data["user_id"] = $user[0]["user_id"];$data["user_name"] = $user[0]["user_name"];$data["pro_id"] = $_POST["pro_id"];$data["pro_name"] = $_POST["pro_name"];$data["pro_price"] = $_POST["pro_price"];$data["pro_num"] = $_POST["pro_num"];$data["pro_total"] = $_POST["pro_num"]*$_POST["pro_price"];dump($data);echo $data["pro_name"];}}

header("Content-Type:text/html;charset=utf8");

echo "<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">";