我很难让我的CSV导出功能正常工作
我发现了很多使用mysqli_ *函数的例子,但我实际上是在使用PDO,所以我不得不根据自己的需要调整一些问题/答案。
我可以看到,我正在解析并将数据写入* .csv文件,但最后我不是简单地从浏览器中获取任何“下载”模式。
再一次,环顾四周,我知道我的标题可能会有一些问题,所以我在寻求你的帮助。
这是我的PHP函数代码段:
function downloadAsCSV($dsn, $dbUser, $dbPsw, $options) {
// New PDO connection.
$pdo = pdoConnect($dsn, $dbUser, $dbPsw, $options);
$query = ... // Not going to write it down.
// Let's query the database, ...
$stmt = $pdo->prepare($query);
// Setting up the query variables here...
[...]
// Executing the statement...
$stmt->execute();
// Headers.
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header('Content-Description: File Transfer');
header("Content-Type: text/csv");
header("Content-Disposition: attachment; filename='export.csv'");
header("Pragma: no-cache");
header("Expires: 0");
// Let's open tbe "*.csv" file where we'll save the results.
$fp = fopen("php://output", "w");
if ($fp) {
$first_row = $stmt->fetch(PDO::FETCH_ASSOC);
$headers = array_keys($first_row);
fputcsv($fp, array_values($first_row));
fputcsv($fp, $headers);
// ... fetch the results...
$workpiecesArray = $stmt->fetchAll();
// ... and, finally, export them.
foreach ($workpiecesArray as $workpiece) {
fputcsv($fp, array_values($workpiece));
}
}
fclose($fp);
// Closing the connection.
$stmt = null;
$pdo = null;
}
function mysqli_field_name($result, $field_offset) {
$properties = mysqli_fetch_field_direct($result, $field_offset);
return is_object($properties) ? $properties->name : null;
}
我已经从this answer编写了表格列标题。
答案 0 :(得分:2)
您需要做的是打印您现在没有做的文件。 使用readfile查看此示例: http://php.net/manual/en/function.header.php#example-5554
简单地说:
1.替换
$fp = fopen("php://output", "w");
与
$tmpfname = tempnam("/", "");
$fp = fopen($tmpfname, "w");
2.替换
fclose($fp);
与
fclose($fp);
readfile($tmpfname);
unlink($tmpfname);
这将起作用
答案 1 :(得分:1)
header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="export.csv"');
header('Expires: 0');
header('Cache-Control: must-revalidate');
header('Pragma: public');
header('Content-Length: ' . filesize('export.csv'));
readfile($csvFile);
exit;
`put this after` fclose($fp);