uploadtype=$type;
                $this->file=$file;
        }
private function createfilename()
        {
                return $this->filename=ttr_.time().$this->getrandomn(4);
        }
private function getuploadpath()
        {
                if(substr($this->uploadpath,-1,1)!=/) 
                {
                        $this->savepath=$this->uploadpath./.date(ym);
                }else{
                        $this->savepath=$this->uploadpath.date(ym);
                }
                $this->savepath=$this->getfolder($this->savepath);
                return true;
        }
private function getfileext($tempfilename)
        {
                return end(explode(.,$tempfilename));
        }
private function getext()
        {
                if(in_array(strtolower($this->getfileext($tempfilename)),$this->ext))
                {
                        return true;
                }else{
                        return false;        
                }
        }
private function getfolder($folder)
        {
                if(!is_dir($folder))
                {
                        mkdir($folder);
                }
                return $folder./;
        }
public function upload()
        {
                if($this->uploadtype==one)
                {
if($this->getext($this->file[type]))
                        {
parent::errorext();
}else if($this->file[size]>self::filesize){
parent::errorfilesize();
}else if(!$this->getuploadpath()){
parent::erroruploadpath();
}else{
                                $filenametemp=$this->createfilename();
                                $filename=$this->savepath.$filenametemp...$this->getfileext($this->file[name]);
                                if(move_uploaded_file($this->file[tmp_name],$filename))
                                {        
                                        $this->uploadfilename=$filenametemp;
                                        parent::okmoved();
}else{
                                        parent::errormoveupload();
                                }
                        }
                }else if($this->uploadtype==any){
for($i=0;$icount($this->file);$i++)
                        {
if($this->getext($this->file[$i][type]))
                                {
                                        parent::errorext();
}else if($this->file[$i][size]>self::filesize){
parent::errorfilesize();
}else if(!$this->getuploadpath()){
parent::erroruploadpath();
}else{
                                        $filenametemp=$this->createfilename();
                                        $filename=$this->savepath.$filenametemp...$this->getfileext($this->file[$i][name]);
                                        if(move_uploaded_file($this->file[$i][tmp_name],$filename))
                                        {        
                                                $str.=$filenametemp.|;
}else{
                                                parent::errormoveupload();
                                        }
}
}
                        $this->uploadfilename=substr($str,0,strlen($str)-1);        
                        parent::okmoved();
                }
        }
public function getuploadfilename()
        {
                return $this->uploadfilename;
        }
public function setuploadpath($path)
        {
                $this->uploadpath=$path;
        }
private function getrandomn($n)
        {
                if ($n 1 || $n>10)  return ;
$ary_num= array(0,1,2,3,4,5,6,7,8,9);
                $return =;
                for ($i=0;$i$n;$i++)
                {
                        $randn = rand(0,9-$i);
                        $return .= $ary_num[$randn];
                        $ary_num[$randn] = $ary_num[9-$i];
                }
                return $return;
        }
public function __destruct()
        {
                $this->uploadfilename=null;
                $this->uploadtype=null;
                $this->file=null;
                $this->savepath=null;
        }
}
class error
{
        public static function errorfilesize()
        {
                echo 超出最大上传限制;
        }
public static function errorext()
        {
                echo 此类文件不允许上传;
        }
public static function erroruploadpath()
        {
                echo 上传路径不正确;
        }
public static function errormoveupload()
        {
                echo 上传失败;
        }
public static function okmoved()
        {
                echo 上传成功！;
        }
public static function okarraymoved()
        {
                echo 上传成功！;
        }
}
实例应用:
upload();
    echo $upload->getuploadfilename();
}
?>
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