ThinkPHP file upload example-PHP Tutorial-php.cn

ThinkPHP file upload example

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Release： 2023-03-30 07:26:02

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This article mainly introduces the implementation method of ThinkPHP file upload, which is a very common technique in ThinkPHP program development. Friends who need it can refer to it

File upload is a common function in many PHP program projects , today this article will share a complete example to implement the ThinkPHP file upload function. The specific method is as follows:

1. Action part:

FileAction.class.php page code is as follows:

<?php
class FileAction extends Action{
  function index(){
    $file=M(&#39;file&#39;);
    $list=$file->select();
    $this->assign(&#39;filelist&#39;,$list);
    $this->display();  
  }  
  function upload(){
    //文件上传地址提交给他，并且上传完成之后返回一个信息，让其写入数据库  
    if(empty($_FILES)){
      $this->error(&#39;必须选择上传文件&#39;);  
    }else{
      $a=$this->up();
      if(isset($a)){
        //写入数据库的自定义c方法
        if($this->c($a)){
          $this->success(&#39;上传成功&#39;);  
        }
        else{
          $this->error(&#39;写入数据库失败&#39;);  
        }
      }else{
        $this-error(&#39;上传文件异常，请与系统管理员联系&#39;);  
      }
    }
  }
  private function c($data){
    $file=M(&#39;file&#39;);
    $num  =  &#39;0&#39;;
    for($i = 0; $i < count($data)-1; $i++) {
      $data[&#39;filename&#39;]=$data[$i][&#39;savename&#39;];      
      if( $file->data($data)->add())
      {
        $num++;
      }
    }
    if($num==count($data)-1)
    {
      return true;  
    }else
    {
      return false;
    }
  }
  private function up(){
    //完成与thinkphp相关的，文件上传类的调用  
    import(&#39;@.Org.UploadFile&#39;);//将上传类UploadFile.class.php拷到Lib/Org文件夹下
    $upload=new UploadFile();
    $upload->maxSize=&#39;1000000&#39;;//默认为-1，不限制上传大小
    $upload->savePath=&#39;./Public/Upload/&#39;;//保存路径建议与主文件平级目录或者平级目录的子目录来保存  
    $upload->saveRule=uniqid;//上传文件的文件名保存规则
    $upload->uploadReplace=true;//如果存在同名文件是否进行覆盖
    $upload->allowExts=array(&#39;jpg&#39;,&#39;jpeg&#39;,&#39;png&#39;,&#39;gif&#39;);//准许上传的文件类型
    $upload->allowTypes=array(&#39;image/png&#39;,&#39;image/jpg&#39;,&#39;image/jpeg&#39;,&#39;image/gif&#39;);//检测mime类型
    $upload->thumb=true;//是否开启图片文件缩略图
    $upload->thumbMaxWidth=&#39;300,500&#39;;
    $upload->thumbMaxHeight=&#39;200,400&#39;;
    $upload->thumbPrefix=&#39;s_,m_&#39;;//缩略图文件前缀
    $upload->thumbRemoveOrigin=1;//如果生成缩略图，是否删除原图
    
    if($upload->upload()){
      $info=$upload->getUploadFileInfo();
      return $info;
    }else{
      $this->error($upload->getErrorMsg());//专门用来获取上传的错误信息的  
    }  
  }
}
?>

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2. View template part:

The template file index.html code is as follows:

<html>
<body>
<volist name="filelist" id="vo">
 小图：<img src="__PUBLIC__/upload/s_{$vo[&#39;filename&#39;]}" /><br />
 大图：<img src="__PUBLIC__/upload/m_{$vo[&#39;filename&#39;]}" /><br />
</volist>
<form action="__URL__/upload" method="post" enctype="multipart/form-data">
  <input type="file" name="file[]" /><br />
  <input type="file" name="file[]" /><br />
  <input type="file" name="file[]" /><br />
  <input type="submit" value="上传" />
</form>

</body>
</html>

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I believe that the examples described in this article can serve as a reference for everyone's ThinkPHP program development.

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