PHP fputcsv 不在 server 產生CSV檔案, 直接下載

將 fputcsv() 的寫入檔案 pointer 設定為 php://memory

<?php
$list = array(
    array("A1","B1","C1"),
    array("A2","B2","C2")
);

$filename = date("Y-m-d") . ".csv";
$f = fopen('php://memory', 'w'); // 寫入 php://memory
foreach ($list as $row) {
    fputcsv($f, $row);
}
fseek($f, 0);
header('Content-Type: application/csv');
header('Content-Disposition: attachement; filename="' . $filename . '"');
fpassthru($f);

參考：
http://www.php.net/manual/en/wrappers.php.php (php://)
http://stackoverflow.com/questions/16251625/how-to-create-and-download-a-csv-file-from-php-script