php image upload class with calling method,

The example in this article is to share the php image upload class for your reference, the specific content is as follows

Calling method:

<&#63;php
header("Content-Type:text/html; charset=utf-8"); 
//類的實(shí)例化：
include("uppoo.php");//類的文件名是upoop.php
$up=newupphoto;
$submit=$_POST['submit'];
if($submit=="上傳"){
$up->get_ph_tmpname($_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();
}
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//上傳圖片的HTML：
<form action="upphoto.php&#63;action=act" method="post" enctype="multipart/form-data">
圖片來源：<input type="file" name="photo">
<input type="submit" name="submit" value="上傳"> 

Upload class, save the file name as uppoo.php:

<&#63;php
class upphoto{
public $previewsize=0.125 ;  //預(yù)覽圖片比例
public $preview=0;  //是否生成預(yù)覽，是為1，否為0
  public $datetime;  //隨機(jī)數(shù)
  public $ph_name;  //上傳圖片文件名
  public $ph_tmp_name;  //圖片臨時(shí)文件名
  public $ph_path="./userimg/";  //上傳文件存放路徑
public $ph_type;  //圖片類型
  public $ph_size;  //圖片大小
  public $imgsize;  //上傳圖片尺寸，用于判斷顯示比例
  public $al_ph_type=array('image/jpg','image/jpeg','image/png','image/pjpeg','image/gif','image/bmp','image/x-png');  //允許上傳圖片類型
  public $al_ph_size=1000000;  //允許上傳文件大小
 function __construct(){
  $this->set_datatime();
 }
 function set_datatime(){
  $this->datetime=date("YmdHis");
 }
  //獲取文件類型
 function get_ph_type($phtype){
   $this->ph_type=$phtype;
 }
 //獲取文件大小
 function get_ph_size($phsize){
   $this->ph_size=$phsize."<br>";
 }
 //獲取上傳臨時(shí)文件名
 function get_ph_tmpname($tmp_name){
  $this->ph_tmp_name=$tmp_name;
  $this->imgsize=getimagesize($tmp_name);
 }
 //獲取原文件名
 function get_ph_name($phname){
  $this->ph_name=$this->ph_path.$this->datetime.strrchr($phname,"."); //strrchr獲取文件的點(diǎn)最后一次出現(xiàn)的位置
//$this->ph_name=$this->datetime.strrchr($phname,"."); //strrchr獲取文件的點(diǎn)最后一次出現(xiàn)的位置
return $this->ph_name;
 }
// 判斷上傳文件存放目錄
 function check_path(){
  if(!file_exists($this->ph_path)){
   mkdir($this->ph_path);
  }
 }
 //判斷上傳文件是否超過允許大小
 function check_size(){
  if($this->ph_size>$this->al_ph_size){
   $this->showerror("上傳圖片超過2000KB");
  }
 }
 //判斷文件類型
 function check_type(){
  if(!in_array($this->ph_type,$this->al_ph_type)){
     $this->showerror("上傳圖片類型錯(cuò)誤");
  }
 }
 //上傳圖片
  function up_photo(){
  if(!move_uploaded_file($this->ph_tmp_name,$this->ph_name)){
  $this->showerror("上傳文件出錯(cuò)");
  }
 }
 //圖片預(yù)覽
  function showphoto(){
   if($this->preview==1){
   if($this->imgsize[0]>2000){
    $this->imgsize[0]=$this->imgsize[0]*$this->previewsize;
       $this->imgsize[1]=$this->imgsize[1]*$this->previewsize;
   }
     echo("<img src=\"{$this->ph_name}\" width=\"{$this->imgsize['0']}\" height=\"{$this->imgsize['1']}\">");
   }
  }
 //錯(cuò)誤提示
 function showerror($errorstr){
  echo "<script language=java script>alert('$errorstr');location='java script:history.go(-1);';</script>";
  exit();
 }
 function save(){
  $this->check_path();
  $this->check_size();
  $this->check_type();
  $this->up_photo();
  $this->showphoto();
 }
}
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The above is the entire content of this article. I hope it will be helpful to everyone in learning PHP programming.