- class upphoto{
- public $previewsize=0.125 ; //预览图片比例
- public $preview=0; //是否生成预览,是为1,否为0
- public $datetime; //随机数
- public $ph_name; //上传图片文件名
- public $ph_tmp_name; //图片临时文件名
- public $ph_path="../userimg/"; //上传文件存放路径
- public $ph_type; //图片类型
- public $ph_size; //图片大小
- public $imgsize; //上传图片尺寸,用于判断显示比例
- public $al_ph_type=array(image/jpg,image/jpeg,image/png,image/pjpeg,image/gif,image/bmp,image/x-png); //允许上传图片类型
- public $al_ph_size=1000000; //允许上传文件大小
- function __construct(){
- $this->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]*$this->previewsize;
- }
- echo("
");
- }
- }
- //错误提示
- function showerror($errorstr){
- echo "";
- exit();
- }
- function save(){
- $this->check_path();
- $this->check_size();
- $this->check_type();
- $this->up_photo();
- $this->showphoto();
- }
- }
- ?>

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