uploads 上传图片

  public static   function  upFile($r,$p='../images/link/',$type='gif,jpg,png',$named=0){
        $newnames = null;
        //var_dump($r);
        foreach($r as $v){
            //var_dump($v['name']);
            $name = $v['name'];
            $name1 =  explode('.',$name);
            $ext = $name1[count($name1)-1];  var_dump($ext);
            if(in_array($ext,explode(',',$type))){
                $n = $named==0 ? date('YmdHis').'.'.$ext : $named;
                var_dump($n);
                move_uploaded_file($v['tmp_name'],$p.$n);
                $newnames[] = $n;
            }
        }

        return $newnames;
    }

html 文件
<tr>
  <td>图片：</td>
  <td><input type="file" name="img_url" value="<?php echo $article->img_url; ?>"/></td>
</tr>