Prestashop send mail attachment pdf from html2pdf

Question

Everything is in the title, but to be more precise :

I made an override of Cart.php, in a function i'd like to send a mail with a pdf generated as an attachment.

    $file_attachement['content'] = $voucher->output("useless.pdf", 'E');
    $file_attachement['name'] = 'Voucher.pdf';
    $file_attachement['mime'] = 'application/pdf';

    Mail::Send(
        (int)Context::getContext()->language->id,
        'voucherSend',
        "blabla.",
        array(),
        $customer->email,
        $customer->firstname.' '.$customer->lastname,
        $file_attachement,
        null, _PS_MAIL_DIR_
    );

(Where $voucher is generated via html2pdf)

The mail is sent, but with no attachment unfortunately. However if I change the output option from E to I , supposed to send the pdf directly to the user browser, it works like a charm...

I really don't understand where am I wrong, and if...

Answer 1

尝试使用Tools :: file_get_contents（'useless.pdf'）而不是$ voucher-> output，并检查是否在正确的位置发送此数据