一个简单的数据导出excel类

<?php
/**
* 生成excel文件操作
*/
class Excel
{

private $limit = 10000;

public function download($data, $fileName)
{
$fileName = $this->_charset($fileName);
header("Content-Type: application/vnd.ms-excel; charset=gbk");
header("Content-Disposition: inline; filename=\"" . $fileName . ".xls\"");
echo "<?xml version=\"1.0\" encoding=\"gbk\"?>\n
<Workbook xmlns=\"urn:schemas-microsoft-com:office:spreadsheet\"
xmlns:x=\"urn:schemas-microsoft-com:office:excel\"
xmlns:ss=\"urn:schemas-microsoft-com:office:spreadsheet\"
xmlns:html=\"http://www.w3.org/TR/REC-html40\">";
echo "\n<Worksheet ss:Name=\"" . $fileName . "\">\n<Table>\n";
$guard = 0;
foreach($data as $v)
{
$guard++;
if($guard==$this->limit)
{
ob_flush();
flush();
$guard = 0;
}
echo $this->_addRow($this->_charset($v));
}
echo "</Table>\n</Worksheet>\n</Workbook>";
}

private function _addRow($row)
{
$cells = "";
foreach ($row as $k => $v)
{
$cells .= "<Cell><Data ss:Type=\"String\">" . $v . "</Data></Cell>\n";
}
return "<Row>\n" . $cells . "</Row>\n";
}

private function _charset($data)
{
if(!$data)
{
return false;
}
if(is_array($data))
{
foreach($data as $k=>$v)
{
$data[$k] = $this->_charset($v);
}
return $data;
}
return iconv('utf-8', 'gbk', $data);
}

}
//使用方法

$excel = new Excel();

$data = array(
array('姓名','标题','文章','价格','数据5','数据6','数据7'),
array('数据1','数据2','数据3','数据4','数据5','数据6','数据7'),
array('数据1','数据2','数据3','数据4','数据5','数据6','数据7'),
array('数据1','数据2','数据3','数据4','数据5','数据6','数据7'),
array('数据1','数据2','数据3','数据4','数据5','数据6','数据7'),
array('数据1','数据2','数据3','数据4','数据5','数据6','数据7')
);

$excel->download($data, '这是一个测试');

?>