PHP面对对象的文件上传实验,php面向对象之文件上传类

//文件上传类(功能)

class FileUpload{

protected $upfile;

protected $path;

protected $error;

protected $fileinfo;

protected $typelist=array();

protected $maxsize=0;

public function __construct($name,$path){

$this->upfile=$_FILES[$name];

$this->path=rtrim($path,"/")."/";

}

public function __set($param,$value){

$this->$param=$value;

}

public function __get($param){

return $this->$param;

}

//验证上传的错误号

private function checkError(){

if($this->upfile[‘error‘]>0){

switch($this->upfile[‘error‘]){

case 1: $info="上传文件大小超出PHP配置文件的设置"; break;

case 2: $info="上传文件大小超过了表单中MAX_FILE_SIZE指定的值"; break;

case 3: $info="文件只有部分被上传。"; break;

case 4: $info="没有文件被上传。"; break;

case 6: $info="找不到临时文件夹。"; break;

case 7: $info="文件写入失败。"; break;

default: $info="未知错误"; break;

}

$this->error=$info;

return false;

}

return true;

}

//验证上传类型

private function checkType(){

if(count($this->typelist)>0){

if(!in_array($this->upfile[‘type‘],$this->typelist)){

$this->error="上传文件类型错误：".$upfile[‘type‘];

return false;

}

}

return true;

}

//验证大小

private function checkSize(){

if($this->maxsize>0 && $this->upfile[‘size‘]>$this->maxsize){

$this->error="上传文件大小超出了允许范围！".$maxsize;

return false;

}

return true;

}

//处理上传的文件名

private function makeName(){

do{

//随机一个文件名，格式：时间戳+4位随机数+源后缀名

$newname = time().rand(1000,9999).".".pathinfo($this->upfile[‘name‘],PATHINFO_EXTENSION);

}while(file_exists($this->path.$newname)); //判断随机的文件名是否存在。

$this->fileinfo[‘savename‘]=$newname;

return true;

}

//移动上传文件

private function movefile(){

if(is_uploaded_file($this->upfile[‘tmp_name‘])){

if(move_uploaded_file($this->upfile[‘tmp_name‘],$this->path.$this->fileinfo[‘savename‘])){

return true;

}else{

$this->error=‘执行上传文件移动失败！‘;

}

}else{

$this->error=‘不是一个有效的上传文件！‘;

}

return false;

}

//执行上传

public function upload(){

return ($this->checkError() && $this->checkType() && $this->checkSize() && $this->makeName() && $this->movefile());

}

}

/*

//创建上传对象

$upfile = new FileUpload("pic","./public/uploads/");

//初始化属性

$upfile->filetype="";

$upfile->maxsize="";

//执行上传(成功返回true，失败返回false)

if($upfile->upload()){

echo $upfile->fileinfo[‘savename‘]; //获取上后的文件名

}else{

echo $upfile->error; //获取上传失败信息

}

*/

原文：http://2262805.blog.51cto.com/2252805/1394404