public function export()
    {
        if ($this->request->isPost()) {
            set_time_limit(0);
            $search = $this->request->post('search');
            $ids = $this->request->post('ids');
            $filter = $this->request->post('filter');
            $op = $this->request->post('op');
            $columns = $this->request->post('columns');

            $excel = new PHPExcel();

            $excel->getProperties()
                ->setCreator("FastAdmin")
                ->setLastModifiedBy("FastAdmin")
                ->setTitle("заголовок")
                ->setSubject("Subject");
            $excel->getDefaultStyle()->getFont()->setName('Microsoft Yahei');
            $excel->getDefaultStyle()->getFont()->setSize(12);

            $this->sharedStyle = new PHPExcel_Style();
            $this->sharedStyle->applyFromArray(
                array(
                    'fill'      => array(
                        'type'  => PHPExcel_Style_Fill::FILL_SOLID,
                        'color' => array('rgb' => '000000')
                    ),
                    'font'      => array(
                        'color' => array('rgb' => "000000"),
                    ),
                    'alignment' => array(
                        'vertical'   => PHPExcel_Style_Alignment::VERTICAL_CENTER,
                        'horizontal' => PHPExcel_Style_Alignment::HORIZONTAL_CENTER,
                        'indent'     => 1
                    ),
                    'borders'   => array(
                        'allborders' => array('style' => PHPExcel_Style_Border::BORDER_THIN),
                    )
                ));

            $worksheet = $excel->setActiveSheetIndex(0);
            $worksheet->setTitle('заголовок');

            $whereIds = $ids == 'all' ? '1=1' : ['id' => ['in', explode(',', $ids)]];
            $this->request->get(['search' => $search, 'ids' => $ids, 'filter' => $filter, 'op' => $op]);
            list($where, $sort, $order, $offset, $limit) = $this->buildparams();

            $line = 1;
            $list = [];
            $this->model
                ->field($columns)
                ->where($where)
                ->where($whereIds)
                ->chunk(100, function ($items) use (&$list, &$line, &$worksheet) {
                    $styleArray = array(
                        'font' => array(
                            'bold'  => true,
                            'color' => array('rgb' => 'FF0000'),
                            'size'  => 15,
                            'name'  => 'Verdana'
                        ));
                    $list = $items = collection($items)->toArray();
                    foreach ($items as $index => $item) {
                        $line++;
                        $col = 0;
                        foreach ($item as $field => $value) {

                            $worksheet->setCellValueByColumnAndRow($col, $line, $value);
                            $worksheet->getStyleByColumnAndRow($col, $line)->getNumberFormat()->setFormatCode(PHPExcel_Style_NumberFormat::FORMAT_TEXT);
                            $worksheet->getCellByColumnAndRow($col, $line)->getStyle()->applyFromArray($styleArray);
                            $col++;
                        }
                    }
                });
            $first = array_keys($list[0]);
            foreach ($first as $index => $item) {
                $worksheet->setCellValueByColumnAndRow($index, 1, __($item));
            }

            $excel->createSheet();
            // Redirect output to a client’s web browser (Excel2007)
            $title = date("YmdHis");
            header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
            header('Content-Disposition: attachment;filename="' . $title . '.xlsx"');
            header('Cache-Control: max-age=0');
            // If you're serving to IE 9, then the following may be needed
            header('Cache-Control: max-age=1');

            // If you're serving to IE over SSL, then the following may be needed
            header('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); // Date in the past
            header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT'); // always modified
            header('Cache-Control: cache, must-revalidate'); // HTTP/1.1
            header('Pragma: public'); // HTTP/1.0

            $objWriter = PHPExcel_IOFactory::createWriter($excel, 'Excel2007');
            $objWriter->save('php://output');
            return;
        }
    }

<a href="javascript:;" class="btn btn-success btn-export {:$auth->check('test/export')?'':'hide'}" title="{:__('Export')}" id="btn-export-file"><i class="fa fa-download"></i> {:__('Export')}</a>

var submitForm = function (ids, layero) {
                var options = table.bootstrapTable('getOptions');
                console.log(options);
                var columns = [];
                $.each(options.columns[0], function (i, j) {
                    if (j.field && !j.checkbox && j.visible && j.field != 'operate') {
                        columns.push(j.field);
                    }
                });
                var search = options.queryParams({});
                $("input[name=search]", layero).val(options.searchText);
                $("input[name=ids]", layero).val(ids);
                $("input[name=filter]", layero).val(search.filter);
                $("input[name=op]", layero).val(search.op);
                $("input[name=columns]", layero).val(columns.join(','));
                $("form", layero).submit();
            };
            $(document).on("click", ".btn-export", function () {
                var ids = Table.api.selectedids(table);
                var page = table.bootstrapTable('getData');
                var all = table.bootstrapTable('getOptions').totalRows;
                console.log(ids, page, all);
                Layer.confirm("Пожалуйста, выберите вариант экспорта<form action='" + Fast.api.fixurl("test/export") + "' method='post' target='_blank'><input type='hidden' name='ids' value='' /><input type='hidden' name='filter' ><input type='hidden' name='op'><input type='hidden' name='search'><input type='hidden' name='columns'></form>",{
                    title: 'Экспортданные',                    btn: ["Выбранные элементы(" + ids.length + "полоска)", "Эта страница(" + page.length + "полоска)", "все(" + all + "полоска)"],
                    success: function (layero, index) {
                        $(".layui-layer-btn a", layero).addClass("layui-layer-btn0");
                    }
                    , yes: function (index, layero) {
                        submitForm(ids.join(","), layero);
                        return false;
                    }
                    ,
                    btn2: function (index, layero) {
                        var ids = [];
                        $.each(page, function (i, j) {
                            ids.push(j.id);
                        });
                        submitForm(ids.join(","), layero);
                        return false;
                    }
                    ,
                    btn3: function (index, layero) {
                        submitForm("all", layero);
                        return false;
                    }
                })
            });