Laravel の Mailable を使って、CSVファイルを添付してメールを送る方法

使うもの

->attachData() を使う。

コード

<?php

namespace App\Mail;

use Illuminate\Bus\Queueable;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;

class OrderMail extends Mailable
{
    use Queueable, SerializesModels;

    public function build()
    {
        $file = $this->makeFile();
        return $this->view('emails.order')
                    ->attachData(stream_get_contents($file), "order.csv");
    }

    public function makeFile()
    {
        $header = [
            "受注日",
            "受注番号",
            "商品名",
            "単価",
            "個数",
            "小計",
        ];

        $body = [
            "2018/10/17,
            "AB1001",
            "おいしい林檎ジュース",
            100,
            12,
            1200,
        ];

        $stream = fopen('php://temp', 'w');

        fputcsv($stream, $header);
        fputcsv($stream, $body);
        rewind($stream);
        return $stream;
    }
}

参考

https://laravel.com/docs/5.7/mail#attachments
https://stackoverflow.com/questions/28313121/laravel-email-attach-text-file-without-actually-creating-the-file