用phpExcel导出excel

<?php

include_once('./Classes/PHPExcel.php');

$objPHPExcel = new PHPExcel();

$objSheet = $objPHPExcel->getActiveSheet();

$objSheet->setTitle('demo');

$data = array(

array('姓名','分数'),

array('李四','60'),

array('王五','70')

);

$column = 1;

foreach($data as $k => $v)

{

    $span = ord("A");

    foreach($v as $vk=>$vv)

    {

        $j = chr($span);

        $objSheet->setCellValue($j.$column, $vv);

        $span++;

    }       

    $column++;

}

$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel,'Excel5');

$dir = dirname(__FILE__);

$objWriter->save($dir.'/demo.xlsx');