前端代码
<form  class="layui-form" method="post" action="">



                            <div class="layui-form-item" >
                                <label class="layui-form-label">上传excel</label>
                                <div class="layui-input-inline">
                                    <div class="layui-upload">
                                        <button type="button" name="myfile" class="layui-btn" id="myfile"><i class="layui-icon"></i>上传文件</button>
                                    </div>
                                </div>
                            </div>
</form>


<script type="text/javascript">
                            layui.use(['form','upload'],function(){

                                var form=layui.form;
                                var upload=layui.upload;

                                upload.render({ //允许上传的文件后缀
                                    elem: '#myfile'
                                    ,url: "{:url('zhoubian/do_upload')}"
                                    ,accept: 'file' //普通文件
                                    ,exts: 'xls|excel|xlsx'
                                    ,done: function(res){
                                        if(res.code===1){
                                            layer.msg(res.msg,{icon:6});
                                        }else{
                                            layer.msg('解析失败',{icon:5});
                                        }
                                    }
                                });

                                form.on('submit(formsub)',function(data){
                                    layer.msg('导入数据具体详情未协商确认,待确认后处理');
                                    return false;
                                })


                            });


                        </script>


后台PHP接口
<?php
//导入excel接口,将数据放入缓存中
    public function do_upload(){


        $file=request()->file("file");

        $info=$file->move(ROOT_PATH.'public'.DS . 'uploads'.DS."zhoubian");

        $file_name="";
        if($info){
            $file_name = $info->getSaveName();
        }else{
            $this->error("错误,未获取到文件信息");
        }




        //引入文件
        \think\Loader::import('PHPExcel.PHPExcel');
        $objPHPExcel = new \PHPExcel();


        $filename = ROOT_PATH.'public'.DS . 'uploads'.DS ."zhoubian".DS.$file_name;
        $filename=iconv('GB2312','UTF-8',$filename);


        if(is_file($filename)==false){
            $this->error("未发现文件!");
        }

        $extension = strtolower( pathinfo($filename, PATHINFO_EXTENSION) );

        \think\Loader::import('PHPExcel.IOFactory.PHPExcel_IOFactory');


        //使用 PHPExcel_IOFactory 来鉴别文件应该使用哪一个读取类
        $inputFileType = \PHPExcel_IOFactory::identify($filename);
        $objReader = \PHPExcel_IOFactory::createReader($inputFileType);
        //只设为读取,加快读取速度
        $objReader->setReadDataOnly(true);
        $objExcel = $objReader->load($filename);


        $sheet = $objExcel->getSheet(0);
        $highestRow = $sheet->getHighestRow();
        // 取得总列数
        $highestColumn = $sheet->getHighestColumn();
        //循环读取excel文件,读取一条,插入一条
        $excel_array=array();
        //从第一行开始读取数据
        for($j=1;$j<=$highestRow;$j++){
            //从A列读取数据
            for($k='A';$k<=$highestColumn;$k++){
                // 读取单元格

                $excel_array[$j][]=$objExcel->getActiveSheet()->getCell($k.$j)->getFormattedValue();
            }
        }

        var_dump($excel_array);die();

        //unset($excel_array[1]);

        $data=[];
        foreach ($excel_array as $k=>$v){
            $data[$k]["store"]=$v["1"];
            $data[$k]["goods"]=$v["5"];
        }


        //获取解析excel后的数组
        $final_arr=$this->tongji($data);

        if(!empty($final_arr)){
            //设置快递excel的数据缓存
            Cache::set("Kdexcel",$final_arr,6000);
            $msg=[
                'code'=>1,
                'msg'=>"解析成功",
            ];
        }else{
            $msg=[
                'code'=>0,
                'msg'=>"解析失败!",
            ];
        }




        return json($msg);



    }

1.我用的TP5框架,PHPexcel放的目录如下图,把phpexcel的源码下下来后,放到extend扩展目录里面