php 文件上传类(9)

  }
  private function proRandName(){
   $tmpStr= "abcdefghijklmnopqrstuvwxyz0123456789";
   $str="";
   for ($i=0;$i<8;$i++){
    $num=rand(0,strlen($tmpStr));
    $str.=$tmpStr[$num];
   }
   return $str;
  }
  private function makePath(){
   if(!@mkdir($this->filePath,0755)){
    $this->setOption('errorNum',-7);
   }
  }
  private function copyFile(){
   $filePath=$this->filePath;
   if($filePath[strlen($filePath)-1]!='/'){
    $filePath.='/';
   }
   $filePath.=$this->newFileName;
   if(!@move_uploaded_file($this->tmpFileName,$filePath)){
    $this->setOption('errorNum',-5);
   }
   return  $this->errorNum;
  }
  function getNewFileName(){
     return  $this->newFileName;
  }
  private function getFileErrorFromFILES(){
   return  $this->fileField['error'];
  }
  private function getFileTypeFromFILES(){
   $str=$this->fileField['name'];
   $aryStr=split("\.",$str);                //将字符串分割到数组中
   $ret=strtolower($aryStr[count($aryStr)-1]);
   return  $ret;
  }
  private function getFileNameFromFILES(){
   return $this->fileField['name'];
  }
  private function getTmpFileNameFromFILES(){
   return $this->fileField['tmp_name'];
  }
  private function getFileSizeFromFILES(){
   return $this->fileField['size'];
  }
  public function getErrorMsg(){
   $str="上传文件出错：";
   switch ($this->errorNum){
    case -1:
     $str.="未知错误！";
     break;
    case -2:
     $str.="未允许类型！";
     break;
    case -3:
     $str.="文件过大！";
     break;
    case -4:
     $str.="产生文件名出错！";
     break;
    case -5:
     $str.="上传失败！";
     break;
    case -6:
     $str.="目录不存在！";