php导出数据为excel表格

在后台做了一个用来把数据表里的数据导出到excel表格。以下为函数代码

/**
 * 导出数据为excel表格
 * 
 * @param $data 一个二维数组,结构如同从数据库查出来的数组        	
 * @param $title excel的第一行标题,一个数组,如果为空则没有标题        	
 * @param $filename 下载的文件名
 *        	@examlpe
 *        	$stu = M ('User');
 *        	$arr = $stu -> select();
 *        	exportexcel($arr,array('id','账户','密码','昵称'),'文件名!');
 */
function exportexcel($data = array(), $title = array(), $filename = 'report') {
	header ( "Content-type:application/octet-stream" );
	header ( "Accept-Ranges:bytes" );
	header ( "Content-type:application/vnd.ms-excel" );
	header ( "Content-Disposition:attachment;filename=" . $filename . ".xls" );
	header ( "Pragma: no-cache" );
	header ( "Expires: 0" );
	// 导出xls 开始
	if (! empty ( $title )) {
		/*
		 * foreach ($title as $k => $v) { $title[$k]=iconv("UTF-8", "GB2312",$v); }
		 */
		$title = implode ( "\t", $title );
		echo "$title\n";
	}
	if (! empty ( $data )) {
		foreach ( $data as $key => $val ) {
			foreach ( $val as $ck => $cv ) {
				/* $data[$key][$ck]=iconv("UTF-8", "GB2312", $cv); */
			}
			$data [$key] = implode ( "\t", $data [$key] );
		}
		echo implode ( "\n", $data );
	}
}

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