首先我们需要去PHPExcel官网下载开源包
下载好了以后只需要把里面的classes文件夹解压出来就可以用了！
当然，在处理的数据量庞大的时候就会报错，提示你看nginx日志什么的，这个时候你需要检查php.ini中的memory_limit，如果是128什么的比较小的数字就改大一点，改成512，就可以解决了~
在ThinkPHP中，文件的命名空间还是很重要的，我试着按照其他的第三方命名写namespace但是还是不行，最后我是这么做的
第一步：重命名classes为Excel，并且将文件夹内的PHPExcel.php重命名成PHPExcel.class.php
然后放入到目录文件
然后在控制层导入，直接use的话是会报错找不到类文件的。。。也许是内核里面的路由问题，于是我是在实例化的时候写的详细地址居然可以出来了
$objPHPExcel = new \Org\Excel\PHPExcel(); ??就是这样
但是这样类文件的一些方法是不可以用的，如果调用需要在方法前面加一个\
比如这样：
$objSheet->getStyle("A1:Z1")->getFill()->setFillType(\PHPExcel_Style_Fill::FILL_SOLID)->getStartColor()->setARGB(‘#00FF00‘);//给单元格填充背景颜色
如下是具体代码：
//excel导出
public function excel(){
???//查询sql生成数组
???$loan = M("loan");
???$data = $loan->select();
???$objPHPExcel = new \Org\Excel\PHPExcel();//实例化类文件 等同于在桌面新建一个excel表格
???$objSheet = $objPHPExcel->getActiveSheet();//获得当前活动sheet操作对象
???$objSheet->setTitle(‘loan_info‘);//给当前活动sheet修改名称
???$objSheet->getDefaultStyle()->getAlignment()->setVertical(\PHPExcel_Style_Alignment::VERTICAL_CENTER)->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER);//设置单元格垂直居中、水平居中
???$objSheet->getStyle("A1:Z1")->getFont()->setName("微软雅黑")->setSize(10)->setBold(true);//设置单元格范围的字体、字体大小、加粗
???$objSheet->getStyle("A1:Z1")->getFill()->setFillType(\PHPExcel_Style_Fill::FILL_SOLID)->getStartColor()->setARGB(‘#00FF00‘);//给单元格填充背景颜色
???//添加边框
???$styleArray = array(
???????‘borders‘ => array(
???????????‘outline‘ => array(
???????????????‘style‘ => \PHPExcel_Style_Border::BORDER_THICK,
???????????????‘color‘ => array(‘argb‘ => ‘#F0F8FF‘),
???????????),
???????),
???);
???$objSheet->getStyle("A1")->applyFromArray($styleArray);
???$objSheet->getStyle("B1")->applyFromArray($styleArray);
???$objSheet->getStyle("C1")->applyFromArray($styleArray);
???$objSheet->getStyle("D1")->applyFromArray($styleArray);
???$objSheet->getStyle("E1")->applyFromArray($styleArray);
???$objSheet->getStyle("F1")->applyFromArray($styleArray);
???$objSheet->getStyle("G1")->applyFromArray($styleArray);
???$objSheet->getStyle("H1")->applyFromArray($styleArray);
???$objSheet->getStyle("I1")->applyFromArray($styleArray);
???$objSheet->getStyle("J1")->applyFromArray($styleArray);
???$objSheet->getStyle("K1")->applyFromArray($styleArray);
???$objSheet->getStyle("L1")->applyFromArray($styleArray);
???$objSheet->getStyle("M1")->applyFromArray($styleArray);
???$objSheet->getStyle("N1")->applyFromArray($styleArray);
???$objSheet->getStyle("O1")->applyFromArray($styleArray);
???$objSheet->getStyle("P1")->applyFromArray($styleArray);
???$objSheet->getStyle("Q1")->applyFromArray($styleArray);
???$objSheet->getStyle("R1")->applyFromArray($styleArray);
???$objSheet->getStyle("S1")->applyFromArray($styleArray);
???$objSheet->getStyle("T1")->applyFromArray($styleArray);
???$objSheet->getStyle("U1")->applyFromArray($styleArray);
???$objSheet->getStyle("V1")->applyFromArray($styleArray);
???$objSheet->getStyle("W1")->applyFromArray($styleArray);
???$objSheet->setCellValue("A1","ID")
???????->setCellValue("B1","公司名称")
???????->setCellValue("C1","公司LOGO")
???????->setCellValue("D1","链接地址")
???????->setCellValue("E1","贷款对应人群")
???????->setCellValue("F1","宣传语")
???????->setCellValue("G1","最小额度范围")
???????->setCellValue("H1","最大额度范围")
???????->setCellValue("I1","最小期限范围")
???????->setCellValue("J1","最大期限范围")
???????->setCellValue("K1","利率")
???????->setCellValue("L1","最快放款时间")
???????->setCellValue("M1","计息方式")
???????->setCellValue("N1","是否认证")
???????->setCellValue("O1","申请条件")
???????->setCellValue("P1","申请流程")
???????->setCellValue("Q1","申请所需材料")
???????->setCellValue("R1","申请时间")
???????->setCellValue("S1","更新时间")
???????->setCellValue("T1","成功贷款人数")
???????->setCellValue("U1","按点击收费金额")
???????->setCellValue("V1","是否上架")
???????->setCellValue("W1","显示序号排列");//给单元格填充相应的值
???//循环填充
???$j = 2;
???foreach($data as $key => $val){
???????$objSheet->setCellValue("A".$j,$val[‘id‘])
???????????->setCellValue("B".$j,$val[‘corporate‘])
???????????->setCellValue("C".$j,$val[‘img‘])
???????????->setCellValue("D".$j,$val[‘corporate_url‘])
???????????->setCellValue("E".$j,$val[‘person‘])
???????????->setCellValue("F".$j,$val[‘propaganda‘])
???????????->setCellValue("G".$j,$val[‘xquota‘])
???????????->setCellValue("H".$j,$val[‘dquota‘])
???????????->setCellValue("I".$j,$val[‘xterm‘])
???????????->setCellValue("J".$j,$val[‘dterm‘])
???????????->setCellValue("K".$j,$val[‘rate‘])
???????????->setCellValue("L".$j,$val[‘qtime‘])
???????????->setCellValue("M".$j,$val[‘type‘])
???????????->setCellValue("N".$j,$val[‘authentication‘])
???????????->setCellValue("O".$j,$val[‘condition‘])
???????????->setCellValue("P".$j,$val[‘process‘])
???????????->setCellValue("Q".$j,$val[‘science‘])
???????????->setCellValueExplicit("R".$j,$val[‘apply_time‘],\PHPExcel_Cell_DataType::TYPE_STRING)//设定日期固定的为数字合适不会成为官方看不懂的格式
???????????->setCellValueExplicit("S".$j,$val[‘up_time‘],\PHPExcel_Cell_DataType::TYPE_STRING)//设定日期固定的为数字合适不会成为官方看不懂的格式
???????????->setCellValue("T".$j,$val[‘succ_person‘])
???????????->setCellValue("U".$j,$val[‘click_money‘])
???????????->setCellValue("V".$j,$val[‘is_shelves‘])
???????????->setCellValue("W".$j,$val[‘show_number‘]);
???????$j++;
???}
???//设置文件保存的命名、编码、以及开放保存路径权限
???$fn= "loan_".time().".xls";
???header(‘Content-Type: application/vnd.ms-excel; charset=utf-8‘);
???header("Content-Disposition: attachment;filename=$fn");//告诉浏览器将要输出的名称
???header(‘Cache-Control: max-age=0‘);//禁止缓存
???$objWriter = \PHPExcel_IOFactory::createWriter($objPHPExcel,‘Excel5‘);//生成excel文件
???$objWriter->save(‘php://output‘);//彻底开放保存路径
???exit;
}
基于ThinkPHP开发的PHPExcel导出
原文地址：https://www.cnblogs.com/findher/p/10610310.html