PHP使用PHPexcel导入导出数据的方法

<?php
error_reporting(E_ALL); //开启错误
set_time_limit(0); //脚本不超时
date_default_timezone_set(Europe/London); //设置时间
/** Include path **/
set_include_path(get_include_path() . PATH_SEPARATOR . http://www.jb51.net/../Classes/);//设置环境变量
/** PHPExcel_IOFactory */
include PHPExcel/IOFactory.php;
//$inputFileType = Excel5; //这个是读 xls的
 $inputFileType = Excel2007;//这个是计xlsx的
//$inputFileName = ./sampleData/example2.xls;
$inputFileName = ./sampleData/book.xlsx;
  echo Loading file ,pathinfo($inputFileName,PATHINFO_BASENAME), using IOFactory with a defined reader type of ,$inputFileType,<br />;
  $objReader = PHPExcel_IOFactory::createReader($inputFileType);
  $objPHPExcel = $objReader->load($inputFileName);
  /*
  $sheet = $objPHPExcel->getSheet(0);
  $highestRow = $sheet->getHighestRow(); //取得总行数
  $highestColumn = $sheet->getHighestColumn(); //取得总列
  */ 
  $objWorksheet = $objPHPExcel->getActiveSheet();//取得总行数
  $highestRow = $objWorksheet->getHighestRow();//取得总列数
  echo highestRow=.$highestRow;
  echo "<br>";
  $highestColumn = $objWorksheet->getHighestColumn();
  $highestColumnIndex = PHPExcel_Cell::columnIndexFromString($highestColumn);//总列数
  echo highestColumnIndex=.$highestColumnIndex;
  echo "<br />";
  $headtitle=array();
  for ($row = 1;$row <= $highestRow;$row++)
  {
   $strs=array();
   //注意highestColumnIndex的列数索引从0开始
   for ($col = 0;$col < $highestColumnIndex;$col++)
   {
    $strs[$col] =$objWorksheet->getCellByColumnAndRow($col, $row)->getValue();
   }
    $info = array(
     word1=>"$strs[0]",
     word2=>"$strs[1]",
     word3=>"$strs[2]",
     word4=>"$strs[3]",
    );
    //在这儿，你可以连接，你的数据库，写入数据库了
    print_r($info);
    echo <br />;
  }
?>

private function _export_data($data = array())
{
 error_reporting(E_ALL); //开启错误
 set_time_limit(0); //脚本不超时
 date_default_timezone_set(Europe/London); //设置时间
 /** Include path **/
 set_include_path(FCPATH.APPPATH./libraries/Classes/);//设置环境变量
 // Create new PHPExcel object
 Include PHPExcel.php;
 $objPHPExcel = new PHPExcel();
 // Set document properties
 $objPHPExcel->getProperties()->setCreator("Maarten Balliauw")
    ->setLastModifiedBy("Maarten Balliauw")
    ->setTitle("Office 2007 XLSX Test Document")
    ->setSubject("Office 2007 XLSX Test Document")
    ->setDescription("Test document for Office 2007 XLSX, generated using PHP classes.")
    ->setKeywords("office 2007 openxml php")
    ->setCategory("Test result file");
 // Add some data
 $letter = array(A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z);    
 if($data){
  $i = 1;
  foreach ($data as $key => $value) {
  $newobj = $objPHPExcel->setActiveSheetIndex(0);
  $j = 0; 
  foreach ($value as $k => $val) {
   $index = $letter[$j]."$i";
   $objPHPExcel->setActiveSheetIndex(0)->setCellValue($index, $val);
   $j++;
  }
   $i++;
  }
 }   
 $date = date(Y-m-d,time());  
 // Rename worksheet
 $objPHPExcel->getActiveSheet()->setTitle($date);
 $objPHPExcel->setActiveSheetIndex(0);
 // Redirect output to a clients web browser (Excel2007)
 header(Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet);
 header(Content-Disposition: attachment;filename=".$date..xlsx");
 header(Cache-Control: max-age=0);
 $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, Excel2007);
 $objWriter->save(php://output);
 exit;
}

public function export_data($data = array())
{
 # code...
 include_once(APP_PATH.Tools/PHPExcel/Classes/PHPExcel/Writer/IWriter.php) ;
 include_once(APP_PATH.Tools/PHPExcel/Classes/PHPExcel/Writer/Excel5.php) ;
 include_once(APP_PATH.Tools/PHPExcel/Classes/PHPExcel.php) ;
 include_once(APP_PATH.Tools/PHPExcel/Classes/PHPExcel/IOFactory.php) ;
 $obj_phpexcel = new PHPExcel();
 $obj_phpexcel->getActiveSheet()->setCellValue(a1,Key);
 $obj_phpexcel->getActiveSheet()->setCellValue(b1,Value); 
 if($data){
  $i =2;
  foreach ($data as $key => $value) {
  # code...
  $obj_phpexcel->getActiveSheet()->setCellValue(a.$i,$value);
  $i++;
  }
 } 
 $obj_Writer = PHPExcel_IOFactory::createWriter($obj_phpexcel,Excel5);
 $filename = "outexcel.xls";
 header("Content-Type: application/force-download"); 
 header("Content-Type: application/octet-stream"); 
 header("Content-Type: application/download"); 
 header(Content-Disposition:inline;filename=".$filename."); 
 header("Content-Transfer-Encoding: binary"); 
 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); 
 header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); 
 header("Pragma: no-cache"); 
 $obj_Writer->save(php://output); 
}