tp5和layui的文件上传

 if (request()->isPost()) {
            $file = request()->file('img');
            if ($file) {
                $info = $file->validate(['size' => 15678000, 'ext' => 'jpg,png,gif'])->move(ROOT_PATH . 'public' . DS . 'uploads');
                if ($info) {
                    // echo $info->getSaveName();
                    $where['img'] = '/uploads//' . $info->getSaveName();
                } else {
                    echo $file->getError();
                }
            }
            $in = db('tp')->insert($where);
            if ($in) {
                $this->success('新增成功！');
            }
        }

tp5文件上传

php

    public function upload(){
        $file = request()->file('file');
        $info = $file->validate(['size' => 15678000, 'ext' => 'jpg,png,gif'])->move(ROOT_PATH . 'public' . DS . 'uploads');
        $arr = [];
        if($info){
            $arr['code'] = 1;
            $arr['msg'] = '/uploads'.DS. $info->getSaveName();
            
            return $arr;
        }else{
            $arr['code'] = 2;
            $arr['msg'] = "上传失败";
            return $arr;
        };
        
    }

html

          <button type="button" class="layui-btn" id="test1">
            <i class="layui-icon">&#xe67c;</i>上传图片
          </button>
          <img src="" alt="" id="a">
          <input type="hidden" id="b" name="img">



  <script>
    layui.use('upload', function () {
      var upload = layui.upload;
      var uploadInst = upload.render({
        elem: '#test1' //绑定元素
        ,url: '{:url("index/upload")}' //上传接口
        ,done: function (res){
          $('#a').attr('src', res.msg);
          $('#b').val(res.msg);
        }
        //上传完毕回调
        ,error: function () {
          // 
        }
      });
    });
  </script>

layui 文件上传