php匯出資料excel

           public function villageinfo(){
               set_time_limit(`0`);
               $villageDb=D("Village");
               $houseDb=D("House");
               $areaDb=D("FangArea");
               $field="villageName,villageId,fangAreaId";
               $data=$villageDb->field($field)->select();
               foreach($data as $key=>$val){
                   $a=$areaDb->getAreaName($val[`fangAreaId`]);
                   $data[$key][`areaname`]=$a[`fangAreaName`];
                   $b=$houseDb->getHouseNum($val[`villageId`],340100);
                   $data[$key][`count`]=$b;

               }
               $this->getExcel(``,``,$data);
           }

private  function getExcel($fileName,$headArr,$data){
    //匯入PHPExcel類庫，因為PHPExcel沒有用名稱空間，只能inport匯入
    require_once THINK_PATH.`Library/Org/Util/PHPexcel/PHPExcel.php`;
    import("Library.Org.Util.PHPExcel");
    import("Library.Org.Util.PHPExcel.Writer.Excel5");
    import("Library.Org.Util.PHPExcel.IOFactory.php");

    $date = date("Y_m_d",time());
    $fileName .= "_{$date}.xls";

    //建立PHPExcel物件，注意，不能少了
    $objPHPExcel = new PHPExcel();
    $objProps = $objPHPExcel->getProperties();

    //設定表頭
    $key = ord("A");
    //print_r($headArr);exit;
    foreach($headArr as $v){
        $colum = chr($key);
        $objPHPExcel->setActiveSheetIndex(0) ->setCellValue($colum.`1`, $v);
        $objPHPExcel->setActiveSheetIndex(0) ->setCellValue($colum.`1`, $v);
        $key += 1;
    }

    $column = 2;
    $objActSheet = $objPHPExcel->getActiveSheet();

    //print_r($data);exit;
    foreach($data as $key => $rows){ //行寫入
        $span = ord("A");
        foreach($rows as $keyName=>$value){// 列寫入
            $j = chr($span);
            $objActSheet->setCellValue($j.$column, $value);
            $span++;
        }
        $column++;
    }

    $fileName = iconv("utf-8", "gb2312", $fileName);

    //重新命名錶
    //$objPHPExcel->getActiveSheet()->setTitle(`test`);
    //設定活動單指數到第一個表,所以Excel開啟這是第一個表
    $objPHPExcel->setActiveSheetIndex(0);
    ob_end_clean();//清除緩衝區,避免亂碼
    header(`Content-Type: application/vnd.ms-excel`);
    header("Content-Disposition: attachment;filename="$fileName"");
    header(`Cache-Control: max-age=0`);

    $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, `Excel5`);
    $objWriter->save(`php://output`); //檔案通過瀏覽器下載
    exit;
}