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('file');
$list=$file->select();
$this->assign('filelist',$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('必须选择上传文件');
}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('上传成功');
}
else{
$this->error('写入数据库失败');
}
}else{
$this-error('上传文件异常，请与系统管理员联系');
}
}
}
private function c($data){
$file=M('file');
$num = '0';
for($i = 0; $i < count($data)-1; $i++) {
$data['filename']=$data[$i]['savename'];
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('@.Org.UploadFile');//将上传类UploadFile.class.php拷到Lib/Org文件夹下
$upload=new UploadFile();
$upload->maxSize='1000000';//默认为-1，不限制上传大小
$upload->savePath='./Public/Upload/';//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('jpg','jpeg','png','gif');//准许上传的文件类型
$upload->allowTypes=array('image/png','image/jpg','image/jpeg','image/gif');//检测mime类型
$upload->thumb=true;//是否开启图片文件缩略图
$upload->thumbMaxWidth='300,500';
$upload->thumbMaxHeight='200,400';
$upload->thumbPrefix='s_,m_';//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
}
}
}
?>
2. View template part:
The template file index.html code is as follows:
<html>
<body>
<volist name="filelist" id="vo">
小图：<img src="/static/imghwm/default1.png" data-src="__PUBLIC__/upload/s_{$vo['filename']}" class="lazy" / alt="ThinkPHP file upload example" ><br />
大图：<img src="/static/imghwm/default1.png" data-src="__PUBLIC__/upload/m_{$vo['filename']}" class="lazy" / alt="ThinkPHP file upload example" ><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>
I believe that the examples described in this article can serve as a reference for everyone's ThinkPHP program development.
Related recommendations:
thinkphp implements like fuzzy query example
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