<meta charset="utf-8"/>
<?php
 class upload
 {
 public $files;
 public $seterror;
 public $allowtype;
 public $filetype;
 public $typeerror;
 public $path;
 public $succ=0;
 public $filenewname;
 function __construct($files,$path)
 {
  $this->path=$path;
  $this->files=$files;
  $this->seterror=1;
  $this->allowtype=array("jpg","gif","JPG","png");
  $this->filetype=array();
  $this->filenewname=array();
  if(is_array($_FILES[$files][‘name‘]))
  {
   foreach($_FILES[$files][‘name‘] as $key => $names)
   {
    $file_ex=explode(".",$names);//分成数组
    $this->filetype[$key]=$file_ex[count($file_ex)-1];
    $this->filenewname[$key]=$this->path.time().$key.".".$this->filetype[$key];
   }
   foreach($this->filetype as $key => $type)
   {
    if(!in_array($type,$this->allowtype))
    {
     $this->typeerror=$key+1;
     $this->seterror="第".$this->typeerror."张图片类型不符合要求";
     echo $this->seterror;
     exit;
    }
   }
   foreach($_FILES[$files][‘error‘] as $val)
   {
    if($val!=0)
    {
     switch($val)
     {
      case 1:;
      case 2:$this->seterror="上传的文件过大，最大能上传2M";break;
      case 3:$this->seterror="文件只有部分被上传";break;
      case 4:$this->seterror="文件没有被上传";break;
      case 6:$this->seterror="找不到临时文件夹";break;
      case 7:$this->seterror="文件写入失败";break;
     }
     echo $this->seterror;
     exit;
    }
   }
   
  }
  if(!file_exists($path))
  {
   mkdir($path,0777);
  }
  if($this->seterror==1)
  {
   $this->move_file();
  }
  
 }
 private function move_file()
 {
  
  foreach($_FILES[$this->files][‘tmp_name‘] as $key => $tmp)
   {
     if(move_uploaded_file($tmp,$this->filenewname[$key]))
     {
     $this->succ+=1;
     }
   }
  if($this->succ==count($_FILES[$this->files][‘name‘]))
  {
   echo "全部上传成功";
  }
 }
 }
 
 
 
?>

多文件上传