php图片上传类 附调用方法

get_ph_tmpname($_FILES['photo']['tmp_name']); $up->get_ph_type($_FILES['photo']['type']); $up->get_ph_size($_FILES['photo']['size']); $up->get_ph_name($_FILES['photo']['name']); $up->save(); } ?> //上传图片的HTML：

set_datatime(); } function set_datatime(){ $this->datetime=date("YmdHis"); } //获取文件类型 function get_ph_type($phtype){ $this->ph_type=$phtype; } //获取文件大小 function get_ph_size($phsize){ $this->ph_size=$phsize."
"; } //获取上传临时文件名 function get_ph_tmpname($tmp_name){ $this->ph_tmp_name=$tmp_name; $this->imgsize=getimagesize($tmp_name); } //获取原文件名 function get_ph_name($phname){ $this->ph_name=$this->ph_path.$this->datetime.strrchr($phname,"."); //strrchr获取文件的点最后一次出现的位置 //$this->ph_name=$this->datetime.strrchr($phname,"."); //strrchr获取文件的点最后一次出现的位置 return $this->ph_name; } // 判断上传文件存放目录 function check_path(){ if(!file_exists($this->ph_path)){ mkdir($this->ph_path); } } //判断上传文件是否超过允许大小 function check_size(){ if($this->ph_size>$this->al_ph_size){ $this->showerror("上传图片超过2000KB"); } } //判断文件类型 function check_type(){ if(!in_array($this->ph_type,$this->al_ph_type)){ $this->showerror("上传图片类型错误"); } } //上传图片 function up_photo(){ if(!move_uploaded_file($this->ph_tmp_name,$this->ph_name)){ $this->showerror("上传文件出错"); } } //图片预览 function showphoto(){ if($this->preview==1){ if($this->imgsize[0]>2000){ $this->imgsize[0]=$this->imgsize[0]*$this->previewsize; $this->imgsize[1]=$this->imgsize[1]*$this->previewsize; } echo("alert('$errorstr');location='java script:history.go(-1);';"; exit(); } function save(){ $this->check_path(); $this->check_size(); $this->check_type(); $this->up_photo(); $this->showphoto(); } } ?>