问题描述
public function exportCsv()
{
$this->download_send_headers("subscriber_list_export_" . date("Y-m-d") . ".csv");
$model = $this->getModel('clientsdatas');
$array = $model->getCsvArray();
echo $this->array2csv($array);
die();
}
function array2csv(array &$array)
{
if (count($array) == 0) {
return null;
}
ob_start();
$df = fopen("PHP://output",'w');
fputcsv($df,array_keys(reset($array)));
foreach ($array as $row) {
$row['id'] = '="' . $row['id'] . '"';
fputcsv($df,$row);
}
fclose($df);
return ob_get_clean();
}
function download_send_headers($filename) {
// disable caching
$Now = gmdate("D,d M Y H:i:s");
header("Expires: Tue,03 Jul 2001 06:00:00 GMT");
header("Cache-Control: max-age=0,no-cache,must-revalidate,proxy-revalidate");
header("Last-Modified: {$Now} GMT");
// force download
header("Content-Type: application/force-download");
header("Content-Type: application/octet-stream");
header("Content-Type: application/download");
// disposition / encoding on response body
header("Content-disposition: attachment;filename={$filename}");
header("Content-transfer-encoding: binary");
}
}
解决方法
如果您认为问题出在 PHP 或 CSV 上,那么您可能没有注意数据源,因为可以根据需要查询数据,而无需操作数组:
CASE WHEN column IS NULL THEN "-" ELSE column END AS column