ci框架读取上传的excel文件数据
原文链接: https://blog.csdn.net/qq_38148394/article/details/87921373
此功能实现使用到PHPExcel类库,PHPExcel是一个PHP类库,用来帮助我们简单、高效实现从Excel读取Excel的数据和导出数据到Excel。也是我们日常开发中,经常会遇到的使用场景。
(一) PHPExcel下载
类库下载地址:https://github.com/PHPOffice/PHPExcel
(二) PHPExcel引入到CI框架
1) 解压压缩包里的Classes文件夹中的内容到application\libraries\目录下,目录结构如下:
-- application\libraries\PHPExcel.php
-- application\libraries\PHPExcel (文件夹)
2)修改application\libraries\PHPExcel\IOFactory.php 文件
-- 将其类名从PHPExcel_IOFactory改为IOFactory,遵从CI类命名规则。
-- 将其构造函数改为public
(三) 具体代码实现
1) excel文件的接收及其验证
说明:detectUploadFileMIME()方法 是判断上传文件是否为excel文件,此方法更为安全
参考链接:http://www.jquerycn.cn/a_24882
if($_FILES['file']['error']){ switch($_FILES['file']['error']){ case 1: $this->finish('文件大小超出了服务器的空间大小',1); die; break; case 2: $this->finish('要上传的文件大小超出浏览器限制',1); die; break; case 3: $this->finish('文件仅部分被上传',1); die; break; case 4: $this->finish('没有找到要上传的文件',1); die; break; case 5: $this->finish('服务器临时问价丢失',1); die; break; case 6: $this->finish('文件写入到临时文件夹出错',1); die; break; default: $this->finish('文件上传未知错误',1); } die; } //接收的excel信息 $info = pathinfo($_FILES['file']['name']); $file = $_FILES['file']; //验证excel文件类型 $res = $this->detectUploadFileMIME($file); if($res){ $tmp_name = $info['filename']; $new_name = $tmp_name . '-' . time() .'.'. $info['extension']; $root_path = dirname(BASEPATH); $new_dir = $root_path . '/data/excel/'; if (!file_exists($new_dir)) { mkdir($new_dir, 0777, true); } $new_path = $new_dir . $new_name; $new_path = str_replace('\\', DIRECTORY_SEPARATOR, $new_path); $new_path = str_replace('/', DIRECTORY_SEPARATOR, $new_path); $res = move_uploaded_file($_FILES['file']['tmp_name'], $new_path); if (!$res) { $this->finish('上传失败', 2); die; }
2) 读取excel文件数据
if (!file_exists($new_path)) { exit("文件".$new_path."不存在"); } /*加载PHPExcel*/ $this->load->library('PHPExcel.php'); $this->load->library('PHPExcel/IOFactory.php'); // $this->load->library('PHPExcel/Reader/Excel5.php'); $objPHPExcel = new PHPExcel(); $objProps = $objPHPExcel->getProperties(); //设置excel格式 if($info['extension'] =='xlsx' ){ $objReader = IOFactory::createReader('excel2007'); }else{ $objReader = IOFactory::createReader('Excel5'); } //载入excel文件 $objPHPExcel = $objReader->load($new_path); //读取第一张表 $sheet = $objPHPExcel->getSheet(0); //获取总行数 $highestRow = $sheet->getHighestRow(); //获取总列数 $highestColumn = $sheet->getHighestColumn(); $excel_data = array(); for ($col='A';$col<=$highestColumn;$col++) { for ($row=2;$row<=$highestRow;$row++) { $excel_data[$row-2][]=$sheet->getCell($col.$row)->getValue(); } } print_r($excel_data);die;
我上传的excel文件内容为
打印出来的数据为
就这样完成la
补充detectUploadFileMIME()方法
/** * 检测是否为excel文件程序 * * */ public function detectUploadFileMIME($file) { // 1.through the file extension judgement 03 or 07 $flag = 0; $file_array = explode ( ".", $file ["name"] ); $file_extension = strtolower ( array_pop ( $file_array ) ); // 2.through the binary content to detect the file switch ($file_extension) { case "xls" : // 2003 excel $fh = fopen ( $file ["tmp_name"], "rb" ); $bin = fread ( $fh, 8 ); fclose ( $fh ); $strinfo = @unpack ( "C8chars", $bin ); $typecode = ""; foreach ( $strinfo as $num ) { $typecode .= dechex ( $num ); } if ($typecode == "d0cf11e0a1b11ae1") { $flag = 1; } break; case "xlsx" : // 2007 excel $fh = fopen ( $file ["tmp_name"], "rb" ); $bin = fread ( $fh, 4 ); fclose ( $fh ); $strinfo = @unpack ( "C4chars", $bin ); $typecode = ""; foreach ( $strinfo as $num ) { $typecode .= dechex ( $num ); } // echo $typecode; if ($typecode == "504b34") { $flag = 1; } break; } // 3.return the flag return $flag; }
ok,不谢( ̄_, ̄ )
更新一下,最近听说phpexcel已经停止维护了,所以可以用phpspreadsheet了
还没有尝试,先留个链接 https://blog.csdn.net/DestinyLordC/article/details/84071456