我有以下电子邮件标题:
$random_hash = md5(date('r', time()));
$headers = array ('From' => $from,
'To' => $to,
'Return-Path' => 'info@example.com',
'Subject' => $subject,
'Content-Type'=>'multipart/alternative');
我想在一封电子邮件中发送两个版本的电子邮件。一个文本和一个 html。
所以我这样做了:
ob_start(); ?>
--PHP-alt-<?php echo $random_hash; ?>
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Copy and paste: http://example.com/app_dl.php?app_id=<?php echo $_GET[app_id]; ?> to download your $app_name app 'r'n
Want to get tons more hot apps for free! anywhere anytime? Download our app on http://example.com 'r'n
example.com team;
--PHP-alt-<?php echo $random_hash; ?>
Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
<p><a href='http://example.com/app_dl.php?app_id=<?php echo $_GET[app_id]; ?>'>Click Here</a> to download your <?php echo $app_name_app; ?></p>
<p>Want to get tons more hot apps for free! anywhere anytime? Download our app on <a href='http://example.com'>example.com</a></p>
<br/>
<p>example.com team</p>";
<?php
$bodyHTML =ob_get_clean();
但它似乎效果不佳..我想知道为什么?!?
为了创建multipart/alternative
消息,您需要指定一个boundary
并按该边界分隔每个部分。一个好的边界字符串是消息部分本身极不可能出现的东西,例如由 sha1(uniqid())
生成的随机字符串。例如:
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary=c4d5d00c4725d9ed0b3c8b
--c4d5d00c4725d9ed0b3c8b
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
part1
--c4d5d00c4725d9ed0b3c8b
Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
<b>part2</b>
--c4d5d00c4725d9ed0b3c8b--
这在 RFC 2046 第 5.1.4 节中指定。
我发现使用 PHP_EOL 而不是 ''r' 似乎也可以。例如:
$headers = "Content-type: text/html; charset=UTF8" . PHP_EOL;