phpcms怎么上傳文件

public?function?upload()?{?$grouplist?=?getcache('grouplist','member');???//獲取緩存中身份分組的列表 ????????if($this->isadmin==0?&&?!$grouplist[$this->groupid]['allowattachment'])?return?false;???//判斷是否允許上傳附件 ????????pc_base::load_sys_class('attachment','',0);???//加載attachment類 ????????$module?=?trim($_GET['module']);??//通過get方式獲取模型 ????????$catid?=?intval($_GET['catid']);??//通過get方式獲取catid ????????$siteid?=?$this->get_siteid();???//獲取站點ID ????????$site_setting?=?get_site_setting($siteid);???//獲取站點配置信息，這個函數在此模塊中的公共函數global.func.php中可以找到 ????????$site_allowext?=?$site_setting['upload_allowext'];??//獲取到允許的上傳文件類型? ????????$attachment?=?new?attachment($module,$catid,$siteid);???//實例化attachment類，就是上面剛剛提到的加載進來的類 ????????$attachment->set_userid($this->userid);??//調用attachment類的set_userid函數，確定是哪個用戶上傳的。 ????????$a?=?$attachment->upload('upload',$site_allowext);??//上傳文件，具體的函數請查看attachment類。 ????????if($a){?????//下面這些就是上傳成功后的一些路徑和文件名什么的了~ ????????????$filepath?=?$attachment->uploadedfiles[0]['filepath'];?$fn?=?intval($_GET['CKEditorFuncNum']);?$this->upload_json($a[0],$filepath,$attachment->uploadedfiles[0]['filename']);?$attachment->mkhtml($fn,$this->upload_url.$filepath,'');?}?}