thinkphp csv.class.php文件导出gb2312格式csv

function creatcsv($filename,$array)
    {
        @ini_set('display_errors',        0);
        header("Content-Disposition: attachment; filename=$filename.csv");
        header("Content-Transfer-Encoding: binary"); 
        header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
        header("Pragma: no-cache");
        header("Expires: 0");
        header('application/txt;charset=gb2312');
        header( 'Content-Transfer-Encoding: binary' );
        ob_clean();
        //echo chr(0xFF).chr(0xFE);
        if(is_array($array))
        {
            if(is_array(@$array[0]))
            {
                foreach ($array as $tmp)
                {
                    echo $this->est_iconv($this->charset, 'gb2312','"'.join('","',$tmp).'"');
                    echo "\r\n";
                }
            }
            else
            {
                echo $this->est_iconv($this->charset, 'gb2312', join(',',$array));
            }
        }
        else
        {
            $this->ErrorMsg("param is not array");
            return false;
        }
    }