<form method="post" action="php文件" enctype="multipart/form-data">
 <h3>導入Excel表：</h3><input type="file" name="file_stu" />

 <input type="submit" value="導入" />
</form>

 if (! empty ( $_FILES ['file_stu'] ['name'] )) 
 {
 $tmp_file = $_FILES ['file_stu'] ['tmp_name'];
 $file_types = explode ( ".", $_FILES ['file_stu'] ['name'] );
 $file_type = $file_types [count ( $file_types ) - 1];
  /*判別是不是.xls文件，判別是不是excel文件*/
  if (strtolower ( $file_type ) != "xls")    
 {
   $this->error ( '不是Excel文件，重新上傳' );
  }
 /*設置上傳路徑*/
  $savePath = SITE_PATH . '/public/upfile/Excel/';
 /*以時間來命名上傳的文件*/
  $str = date ( 'Ymdhis' ); 
  $file_name = $str . "." . $file_type;
  /*是否上傳成功*/
  if (! copy ( $tmp_file, $savePath . $file_name )) 
  {
   $this->error ( '上傳失敗' );
  }
 /*
  *對上傳的Excel數(shù)據(jù)進行處理生成編程數(shù)據(jù),這個函數(shù)會在下面第三步的ExcelToArray類中

  注意：這里調(diào)用執(zhí)行了第三步類里面的read函數(shù)，把Excel轉(zhuǎn)化為數(shù)組并返回給$res,再進行數(shù)據(jù)庫寫入
 */
 $res = Service ( 'ExcelToArray' )->read ( $savePath . $file_name );
 /*
  重要代碼 解決Thinkphp M、D方法不能調(diào)用的問題 
  如果在thinkphp中遇到M 、D方法失效時就加入下面一句代碼
 */
 //spl_autoload_register ( array ('Think', 'autoload' ) );
 /*對生成的數(shù)組進行數(shù)據(jù)庫的寫入*/
 foreach ( $res as $k => $v ) 
 {
  if ($k != 0) 
  {
   $data ['uid'] = $v [0];
   $data ['password'] = sha1 ( '111111' );
   $data ['email'] = $v [1];
   $data ['uname'] = $v [3];
   $data ['institute'] = $v [4];
   $result = M ( 'user' )->add ( $data );
   if (! $result) 
   {
    $this->error ( '導入數(shù)據(jù)庫失敗' );
   }
  }
 }
}

class ExcelToArrary extends Service{
 public function __construct() {
  /*導入phpExcel核心類 注意 ：你的路徑跟我不一樣就不能直接復制*/
  include_once('./Excel/PHPExcel.php');
 }
/**
* 讀取excel $filename 路徑文件名 $encode 返回數(shù)據(jù)的編碼 默認為utf8
*以下基本都不要修改
*/ 
public function read($filename,$encode='utf-8'){
   $objReader = PHPExcel_IOFactory::createReader('Excel5'); 
   $objReader->setReadDataOnly(true); 
   $objPHPExcel = $objReader->load($filename); 
   $objWorksheet = $objPHPExcel->getActiveSheet(); 
　　　 $highestRow = $objWorksheet->getHighestRow(); 
　　　 $highestColumn = $objWorksheet->getHighestColumn(); 
　　 $highestColumnIndex = PHPExcel_Cell::columnIndexFromString($highestColumn); 
 　　 $excelData = array(); 
 　　　for ($row = 1; $row <= $highestRow; $row++) { 
 　　 for ($col = 0; $col < $highestColumnIndex; $col++) { 
     $excelData[$row][] =(string)$objWorksheet->getCellByColumnAndRow($col, $row)->getValue();
   } 
   } 
  return $excelData; 
 }  
 }

$data= M('User')->findAll(); //查出數(shù)據(jù)
$name='Excelfile'; //生成的Excel文件文件名
$res=service('ExcelToArrary')->push($data,$name);

class ExcelToArrary extends Service{
public function __construct() {
  /*導入phpExcel核心類 注意 ：你的路徑跟我不一樣就不能直接復制*/
  include_once('./Excel/PHPExcel.php');
}
/* 導出excel函數(shù)*/
public function push($data,$name='Excel'){
 error_reporting(E_ALL);
 date_default_timezone_set('Europe/London');
 $objPHPExcel = new PHPExcel();

/*以下是一些設置 ，什么作者 標題啊之類的*/
 $objPHPExcel->getProperties()->setCreator("轉(zhuǎn)彎的陽光")
   ->setLastModifiedBy("轉(zhuǎn)彎的陽光")
   ->setTitle("數(shù)據(jù)EXCEL導出")
   ->setSubject("數(shù)據(jù)EXCEL導出")
   ->setDescription("備份數(shù)據(jù)")
   ->setKeywords("excel")
  ->setCategory("result file");
 /*以下就是對處理Excel里的數(shù)據(jù)， 橫著取數(shù)據(jù)，主要是這一步，其他基本都不要改*/
foreach($data as $k => $v){
  $num=$k+1;
  $objPHPExcel->setActiveSheetIndex(0)
 //Excel的第A列，uid是你查出數(shù)組的鍵值，下面以此類推
 ->setCellValue('A'.$num, $v['uid']) 
 ->setCellValue('B'.$num, $v['email'])
 ->setCellValue('C'.$num, $v['password'])
 }
 $objPHPExcel->getActiveSheet()->setTitle('User');
 $objPHPExcel->setActiveSheetIndex(0);
  header('Content-Type: application/vnd.ms-excel');
  header('Content-Disposition: attachment;filename="'.$name.'.xls"');
  header('Cache-Control: max-age=0');
  $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
  $objWriter->save('php://output');
  exit;
}