php下载文件从服务器don'；行不通

我有这段代码，可以在其他项目中使用，但现在下载文件的方法是在浏览器上显示文件

$query = "SELECT * FROM leads";
$result = $dbconn->query($query);

$filename = "leads_shaldor_" . date("Y-m-d H:i");
$filepath = "/var/www/vhosts/as7.co.il/shaldor.as7.co.il/exports/" 
.$filename. ".csv";
    $downpath = "http://shaldor.as7.co.il/exports/" .$filename. ".csv";
    $csvFile = fopen($filepath, 'w') or die("can't open file");
    fprintf($csvFile, chr(0xEF).chr(0xBB).chr(0xBF));
    while($row = $result->fetch_assoc()){
        fputcsv($csvFile, 
array($row['id'],$row['name'],$row['phone'],$row['date']));
        print_r($row);
    }
    fclose($csvFile);
    header("Location: " . $downpath);


$result->close();
$sql->close();

设置以下标题。它应该强制下载。浏览器正在打开它，因为它知道如何渲染文件

请参考以下答案：

你可以用这个

要强制下载服务器上的所有CSV文件，请添加.htaccess文件：

AddType application/octet-stream csv

PHP解决方案

header('Content-Type: application/csv');
header('Content-Disposition: attachment; filename=example.csv');
header('Pragma: no-cache');
readfile("/path/to/yourfile.csv");

为什么会有“print_r（$row）；”？

AddType application/octet-stream csv

header('Content-Type: application/csv');
header('Content-Disposition: attachment; filename=example.csv');
header('Pragma: no-cache');
readfile("/path/to/yourfile.csv");