php-csv导出

/**
* 输出  导出 csv格式
*/
function export_csv($filename,$data)
{
    header("Content-type:textv");
    header("Content-Disposition:attachment;filename=".$filename);
    header('Cache-Control:must-revalidate,post-check=0,pre-check=0');
    header('Expires:0');
    header('Pragma:public');
    echo $data;
}

 // csv导出方法
$str = "用户名,域名,开始时间,http,系统,数据\n";
$str = iconv('utf-8','gbk',$str);

foreach ($datas as $k=>$vo){
    $name          = iconv('utf-8','gbk',$vo['name']);
    $domain_name            = iconv('utf-8','gbk',$vo['domain_name']);
    $start_date             = iconv('utf-8','gbk',date('Y-m-d H:i:s', $vo['start_time']))
    $system                 = iconv('utf-8','gbk',$system);
    $data_value             = $vo['data_value'];
    $data_value             = iconv('utf-8','gbk',$data_value);

    $str .= $name.",".
            $domain_name.",".
            $start_date.",".
            $http_type.",".
            $system.",".
            $data_value.",".
            "\n";
}

$type_name = '请求数';

$filename = "test".$type_name."数据.csv";
export_csv($filename,$str);

exit;