以 "File" 格式而非 pdf 格式下载的附件

Attachment downloaded in "File" format instead of pdf

我正在通过 laravel.But 发送带有附件 (pdf) 的电子邮件,下载后的附件转换为 "File" 类型而不是 pdf...

这是我的代码

    $pdf_file_path = public_path() . '/user/invoices/invoice_' .    $data['hp_transaction_id'] . '.pdf';
        PDF::loadView('payment.payment-invoice', $data)
                ->setPaper('a4')
                ->setOrientation('portrait')
                ->setWarnings(false)
                ->save($pdf_file_path);


 Mail::send('emails.view-property-transaction-completed', $data, function($message) use ($pdf_file_path, $transaction) {
            $message->to(Auth::user()->email)->subject('Transaction Completed');
            $message->attach($pdf_file_path, array('as' => 'Invoice-' . $transaction->id, 'mime' => 'application/pdf'));
        });

我希望文件以 pdf 格式下载 format.What 我应该这样做吗?

找到解决方案。在 as 属性中添加 .pdf 和文件名,如下所示:

$message->attach(
    $invoice_path, 
    array('as' => 'Invoice-' . $transaction->id. ".pdf", 'mime' => 'application/pdf')
);