php读取excel文件并导入数据库（表头任意设定）

最近收到一个很奇葩的需求，要求上传excel员工工资表，表格表头不固定，导入后字段名为表头的拼音，每月导入一次，当月重复导入则覆盖现有的当月表头，并且可以按照在界面上按照月份筛选显示，我写的代码主要包含了几个稍微复杂的地方：

1、excel文件导入后表头汉字转拼音作为字段名

2、phpexcel类读取excel文件中如果列数超过26个（也就是超出A-Z的范围）

3、当月数据上传多次，最近一次会覆盖上一次的全部数据，并且字段重新建立

下面是我实现的代码，包含了phpexcel类，数据库类，上传类，这些类文件可以网上找到，所以不再贴出来

 <?php
     include_once("PHPExcel.php");//引入PHP EXCEL类
     include_once("medoo.php");//引入数据库类
     include_once("UploadFile.php");//引入上传类
     define ('UPLOAD_PATH','./Uploads/');
     $fieldArr = array('shenfenzhenghao', 'zhigongbianhao', 'gongjijinzhanghao', 'danwei', 'banzu', 'xingming');

     if (isset($_FILES['excel']['size']) && $_FILES['excel']['size'] != null) {
         $upload = new UploadFile();
         $upload->maxSize = 10240000;
         $upload->allowExts  = array('xls');
         $dirname = UPLOAD_PATH . date('Ym', time()).'/'.date('d', time()).'/';
         if (!is_dir($dirname) && !mkdir($dirname, 0777, true)) {
             echo '<script type="text/javascript">alert("目录没有写入权限!!");</script>';
         }
         $upload->savePath = $dirname;
         $message = $upload->getErrorMsg();
         if(!$upload->upload()) {
             echo '<script type="text/javascript">alert("{$message}");</script>';
         }else{
             $info =  $upload->getUploadFileInfo();
         }

         if(is_array($info[0]) && !empty($info[0])){
             $savePath = $dirname . $info[0]['savename'];
         }else{
             echo '<script type="text/javascript">alert("上传失败");</script>';
         };

         if(empty($savePath) or !file_exists($savePath)){die('file not exists');}
         $PHPReader = new PHPExcel_Reader_Excel2007();        //建立reader对象
         if(!$PHPReader->canRead($savePath)){
                 $PHPReader = new PHPExcel_Reader_Excel5();
                 if(!$PHPReader->canRead($savePath)){
                         echo 'no Excel';
                         return ;
                 }
         }
         $PHPExcel = $PHPReader->load($savePath);        //建立excel对象
         $currentSheet = $PHPExcel->getSheet(0);        //**读取excel文件中的指定工作表*/
         $allColumn = $currentSheet->getHighestColumn();        //**取得最大的列号*/
         $allRow = $currentSheet->getHighestRow();        //**取得一共有多少行*/
         $data = array();
         $row = 1;
         $rowOne = $rowArr = $main = $time = array();
         $i = 0;
         // 取出excel第一行全部字段
         while(stringFromColumnIndex($i) != $allColumn) {
             $addr = stringFromColumnIndex($i) . $row;
             $cell = (String)$currentSheet->getCell($addr)->getValue();
             if($cell instanceof PHPExcel_RichText){ //富文本转换字符串
                 $cell = $cell->__toString();
             }
             $rowOne[$row][stringFromColumnIndex($i)] = $cell;
             $i++;
         }
         $cell = (String)$currentSheet->getCell($allColumn . $row)->getValue();
         $rowOne[$row][$allColumn] = $cell;

         $newArr = array();
         foreach($rowOne[1] as $key => $value) {
             $tmp = Pinyin($value,'utf-8');
             if(!in_array($tmp, $fieldArr)) {
                 $newArr[$key] = $tmp;
             }
         }
         $db = new medoo(array(
             'database_type' => 'mysql',
             'database_name' => 'gzoa',
             'server' => '127.0.0.1',
             'username' => 'root',
             'password' => '',
             'port' => 3306,
             'charset' => 'utf8',
             'option' => array(PDO::ATTR_CASE => PDO::CASE_NATURAL)
         ));

         $time = date("Ym", time());
         $result = $db->select("fields", ["field_id","field","name"], ["time[=]" => $time]);
         if(!empty($result)) {
             $db->query("delete from fields where time = {$time}");
         }
         foreach($newArr as $key => $value) {
             $insertData = array(
                 'is_main'    =>    0,
                 'field'        =>    $value,
                 'name'        =>    $rowOne[1][$key],
                 'form_type'    =>    'number',
                 'time'        =>    $time
             );
             $db->insert("fields", $insertData);
         }

         $infoArr = array();
         foreach($newArr as $key => $value) {
             foreach($rowOne[1] as $list => $content) {
                 if($key == $list) {
                     $infoArr[$value] = $content;
                 }
             }
         }
         $infoSql = '';
         foreach($infoArr as $key => $value) {
             if(!empty($value)) {
                 $infoSql .= "`{$key}` float(25,2) NOT NULL COMMENT '{$value}',";
             }
         }
         $infoSql = rtrim($infoSql, ',');

         $db->query("DROP TABLE `info_{$time}`");

         $db->query("CREATE TABLE IF NOT EXISTS `info_{$time}` (
   `userid` int(10) unsigned NOT NULL COMMENT '用户id',
   `groupid` int(10) unsigned NOT NULL COMMENT '用户分组id',  {$infoSql}
 ) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=1;");

         $field_list = $db->select("fields", ["field_id","field","name"], ["OR" => ["is_main[=]" => 1,"time[=]" => $time]]);
         foreach($field_list as $key => $value) {
             foreach($rowOne[1] as $list => $content) {
                 if($content == $value['name']) {
                     $rowArr[$list] = $value['field'];
                 }
             }
         }

         $db->query("delete from info where time = {$time}");
         for($rowIndex=2;$rowIndex<=$allRow;$rowIndex++){        //循环读取每个单元格的内容。注意行从1开始，列从A开始

                 $i = 0;
                 // 取出excel第一行全部字段
                 while(stringFromColumnIndex($i) != $allColumn) {
                     $colnum = stringFromColumnIndex($i);
                     $addr = stringFromColumnIndex($i) . $rowIndex;
                     $cell = (String)$currentSheet->getCell($addr)->getValue();
                     if($cell instanceof PHPExcel_RichText){ //富文本转换字符串
                         $cell = $cell->__toString();
                     }
                     if(!empty($cell)) {
                         if(in_array($rowArr[$colnum], $fieldArr)) {
                             $data1[$rowArr[$colnum]] = $cell;
                         } else {
                             $data2[$rowArr[$colnum]] = $cell;
                         }
                     }
                     $i++;
                 }
                 $cell = (String)$currentSheet->getCell($allColumn . $allRow)->getValue();
                 if(!empty($cell)) {
                     if(in_array($rowArr[$allColumn], $fieldArr)) {
                         $data1[$rowArr[$allColumn]] = $cell;
                     } else {
                         $data2[$rowArr[$allColumn]] = $cell;
                     }
                 }

                 $data1['time'] = $time;
                 $data1['groupid'] = $data2['groupid'] = 0;//设置信息分组id
                 $name = isset($data1['xingming']) ? $data1['xingming'] : '';//判断如果帐号不存在，则创建帐号，默认密码123456
                 $result = $db->select("admin", ["id","uid","username"], ["username[=]" => $name]);
                 if(empty($result)) {
                     $adminData = array(
                         'uid'        =>    3,
                         'username'    =>    $name,
                         'password'    =>    md5('123456')
                     );
                     $db->insert("admin", $adminData);
                 }
                 $userid = $db->insert("info", $data1);
                 if($userid) {
                     $data2['userid'] = $userid;
                     $last_user_id = $db->insert("info_{$time}", $data2);
                 }
         }
 echo "<script language=javascript>" .
                  "alert('上传成功！'),parent.location.href='../main.php' " .
                  "</script>";
     }

  function stringFromColumnIndex($pColumnIndex = 0)
 {
         static $_indexCache = array();  

         if (!isset($_indexCache[$pColumnIndex])) {
             if ($pColumnIndex < 26) {
                 $_indexCache[$pColumnIndex] = chr(65 + $pColumnIndex);
             } elseif ($pColumnIndex < 702) {
                 $_indexCache[$pColumnIndex] = chr(64 + ($pColumnIndex / 26)) . chr(65 + $pColumnIndex % 26);
             } else { //开源软件:phpfensi.com
                 $_indexCache[$pColumnIndex] = chr(64 + (($pColumnIndex - 26) / 676)) . chr(65 + ((($pColumnIndex - 26) % 676) / 26)) . chr(65 + $pColumnIndex % 26);
             }
         }
         return $_indexCache[$pColumnIndex];
 } 

 ?>