A complete example of the PHP file upload class,

The example in this article describes the PHP file upload class. Share it with everyone for your reference, the details are as follows:

/**
$file=new class_file($file_array,"flash/");
 $file->set_allow_type(array("jpg","jpeg","gif"));
 $file->is_limit_size();
 if(!$file->allow_file_size()){
   echo $file->error;
   exit;
 }
 if(!$file->allow_file_type()){
    echo $file->error;
    exit();
  }else if(!$file->uploadfile()){
  echo $file->error;
  exit;
 }
**/
<&#63;php
 class class_file{
   private $file_type;
   private $file_size;
   private $save_path;
   private $file_path;
   private $allow_type=array();
   private $allow_size;
   private $file_name;
   private $flag=false;
   private $mime_type;
   private $is_limit_size=false;
   public $error;
   //構(gòu)造函數(shù)
  function class_file($file_array,$save_path){
       $this->file_path=$file_array['tmp_name'];
       $this->file_size=$file_array['size'];
       $this->file_type=$file_array['type'];
       $this->save_path=$save_path;
    }
    //設(shè)置允許的文件類型
   function set_allow_type($allow_type){
      $this->allow_type=$allow_type;
    }
    //設(shè)置允許的文件大小
   function set_allow_size($allow_size){
      $this->allow_size=$allow_size;
    }
    //文件上傳
   public function uploadfile(){
     if(!$this->allow_file_type()){
     $this->file_name();
     }
     if(move_uploaded_file($this->file_path,$this->save_path.$this->file_name)){
       return true;
     }else{
       $this->error="文件上傳失敗";
       return;
     }
   }
//判斷文件上傳的類型
   function allow_file_type(){
     $this->file_name();
     if(in_array($this->mime_type,$this->allow_type)){
         return true;
       }else{
         $this->error="不允許上傳的類型";
         exit();
       }
   }
 //判斷文件上傳的大小
   function allow_file_size($size=100){
     if($this->is_limit_size){
     $this->set_allow_size($size);
     if($this->allow_size>=$this->file_size){
       return true;
     }else{
       $this->error="超過(guò)文件上傳大小限制";
     }
     }
   }
 //是否限制文件大小
   function is_limit_size(){
     $this->is_limit_size=true;
   }
//文件類型和文件名稱
   function file_name(){
    $this->mime_type=substr($this->file_type,strpos($this->file_type,"/")+1);
   if($this->mime_type=="pjpeg"){
     $this->mime_type="jpg";
    }
   if($this->mime_type=="x-ms-wma"){
      $this->mime_type="wma";
    }
    if($this->mime_type=="x-ms-wmv"){
      $this->mime_type="wmv";
    }
    $this->file_name=date("YmdHis").".$this->mime_type";
   }
   function _get_file_name(){
     return $this->file_name;
   }
 }
&#63;>

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