PHP 簡易輸出CSV表格檔案

$ret = '';$arrs = array(array(1,'test1'),             array(2,'test2'),             array(3,'test3'),             array(4,'test4'),             array(5,'test5'),             array(6,'test6'),             array(7,'test7')            );foreach($arrs as $k=>$arr){    $ret .= $arr[0].",".$arr[1]." \n";}//$ret = @mb_convert_encoding ($ret, 'GBK','UTF-8');header("Content-Disposition: attachment; filename=xxxx.csv");header("Content-Type:APPLICATION/OCTET-STREAM");
$bomHeader = pack('H*','EFBBBF');   //將bom頭轉換二進位放在所有字元頂部，可以解決office Excel開啟是亂碼的問題echo $bomHeader.$ret;