Sending Japanese Emails (JIS or UTF‑8) with PHP’s mb_send_mail

Sending Japanese Emails in ISO‑2022‑JP or UTF‑8 with PHP

You can send Japanese emails using the mb_send_mail function, but by default the message is typically sent in ISO‑2022‑JP (JIS).
By configuring the mb_language function, you can send emails using the UTF‑8 character encoding instead.

Sending Japanese Emails in UTF‑8

The following source code sends a Japanese email encoded in UTF‑8 using Base64 encoding.

<?php
  mb_language('uni');
  $to  = "to@hoge.co.jp";  //Recipient
  $sub = "メール件名";
  $body = "メール本文\r\n本文２行目\r\n本文３行目";
  //Email header settings
  $hd = "From: from@hoge.co.jp\r\n".  // The From header is required
        "Cc: cc<cc@hoge.co.jp>\r\n".
        "Bcc: bcc<bcc@hoge.co.jp>\r\n".
        "Reply-To: from@hoge.co.jp\r\n".
        "X-Mailer: PHP/" . phpversion();
  mb_send_mail($to, $sub, $body, $hd);
?>

Sending Japanese Emails in ISO‑2022‑JP (JIS)

The following source code sends a Japanese email encoded in ISO‑2022‑JP (JIS).

<?php
  mb_language('Japanese');
  $to  = "to@hoge.co.jp";  //Recipient
  $sub = "メール件名";
  $body = "メール本文\r\n本文２行目\r\n本文３行目";
  //メールヘッダーの設定
  $hd = "From: from@hoge.co.jp\r\n".  // The From header is required
        "Cc: cc<cc@hoge.co.jp>\r\n".
        "Bcc: bcc<bcc@hoge.co.jp>\r\n".
        "Reply-To: from@hoge.co.jp\r\n".
        "X-Mailer: PHP/" . phpversion();
  mb_send_mail($to, $sub, $body, $hd);
?>

PHP | Samples