php面向对象之文件上传类
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 } */
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