php 文件上传类(2)

     private  $isCoverModer=true;                    //是否覆盖模式 
     
     function  __construct($options=array()){
         $this->setOptions($options);        //设置上传时属性列表 
     }
     
     function uploadFile($filefield){
         $this->setOption('errorNum',0);                //设置错误位 
         $this->setOption('fileField',$filefield);      //设置fileField 
         $this->setFiles();                             //设置文件信息 
         $this->checkValid();                           //判断合法性 
         $this->checkFilePath();                        //检查文件路径 
         $this->setNewFileName();                       //设置新的文件名 
         if($this->errorNum<0)
         return $this->errorNum;
      return  $this->copyFile();  //上传文件 
     }
     private  function setOptions($options=array()){
         foreach ($options as $key=>$val){
             if(!in_array($key,array('filePath','fileField','originName','allowType','maxSize','isUserDefName','userDefName','isRandName','randName'))) 
             continue;
             $this->setOption($key,$val);
         }
     }
     private function setFiles(){