我正试图使用PHP mail（）从数据库BCC到订阅者列表。一切都很好，但我遇到了一个困扰我一上午的问题。我可以用密件抄送发送列表，但无法将接收端的电子邮件地址附加到更致命的"收件人："。
例如，我将列表发送到以下电子邮件地址(test1@example.com，test2@example.com和test3@example.com)。每个电子邮件地址都会收到一封电子邮件，而其他电子邮件地址由于密件抄送而被隐藏。
我的问题是，在标题中，"收件人："在列表的所有接收端都显示为空白。我理解并知道该标头不会显示，因为我在传出消息中只有BCC标头。我试图for循环这个过程，但我收到了所有的电子邮件，加上一个循环中的一个地址。
这是我的工作代码：工作代码包括我试图解决To:标头的循环。我可以发送电子邮件，尽管我收到了所有发送的电子邮件。
<?php
/*
Gathers the number of rows within the database. Used for the loop that displays the entire list in the BCC.
*/
session_start();
include_once '../dbconnect.php';
$result = mysql_query("SELECT * FROM news");
$num_rows = mysql_num_rows($result);
$rows = $num_rows;
/*
Requests the list from the database, please the list in a loop, displays the list only once, and places list in an operator.
*/
$result = mysql_query("SELECT * FROM `news`");
while($row = mysql_fetch_array( $result )) {
for ($x = 1; $x <= 1; $x++) {
$contacts.= "".$row['email'].",";
}
}
/*
ATTEMPT (It works... sort of): Sends mail to the list using BCC, displays the ONLY receivers email address in the To: header
*/
$result = mysql_query("SELECT * FROM `news`");
while($row = mysql_fetch_array( $result )) {
for ($x = 1; $x <= 1; $x++) {
$receiver= "".$row['email']."";
$to = "$receiver";
$subject = 'Test Email';
$headers = "From: example@example.comrn";
$headers .= "BCC: $contacts";
$headers .= "MIME-Version: 1.0rn";
$headers .= "Content-Type: text/html; charset=ISO-8859-1rn";
$message = '<html><body>';
$message .= '<h1 style="">Test Message</h1>';
$message .= '</body></html>';
mail($to,$subject, $message, $headers);
}
}
?>
我的总体想法是循环，但我找不到一个真正完全解决这个问题的解决方案，通过BBC到列表中，并在to:标题中只显示接收端电子邮件地址。有什么想法吗？
使用SMTP服务器更新
我一直在尝试使用此线程中找到的解决方案，并将其应用于SMTP服务器。使用SendGrid发送消息是理想的选择。我提出了以下选项，但脚本似乎只向数据库中的一个地址发送一条消息，而不是所有地址。
<?php
require_once "Mail.php";
$sub = $_POST['subject'];
$ttl = $_POST['title'];
$img = $_POST['image'];
$bdy = $_POST['body'];
$lk = $_POST['link'];
mysql_connect("", "", "") or die(mysql_error()) ;
mysql_select_db("") or die(mysql_error()) ;
$result = mysql_query("SELECT `email` FROM news");
$num_rows = mysql_num_rows($result);
$receivers = array();
while ($row = mysql_fetch_array($result)) {
$receivers[] = $row['email'];
}
foreach ($receivers as $receiver) { }
$from = "test@example.com";
$to = $receiver;
$subject = $sub;
$mime = "1.0";
$ctype = "text/html; charset=ISO-8859-1";
$body = '
<html><body>
<p>Test Message!</p>
</body></html>
';
$host = "";
$port = "";
$username = "";
$password = "";
$headers = array ('From' => $from,
'To' => $to,
'Subject' => $subject,
'MIME-Version' => $mime ,
'Content-Type:' => $ctype);
$smtp = Mail::factory('smtp',
array ('host' => $host,
'port' => $port,
'auth' => true,
'username' => $username,
'password' => $password));
$mail = $smtp->send($to, $headers, $body);
if (PEAR::isError($mail)) {
echo("<p>" . $mail->getMessage() . "</p>");
} else {
echo("<p>Message successfully sent!</p>");
}
?>
该代码包括对代码的一些一般改进。我添加了内联评论来解释我所做的事情。
<?php
// General thing: If you do not need a session, do not start one ;)
session_start();
include_once '../dbconnect.php';
// Select only what you really need from the table. This saves you memory
// and it speeds up the query.
$result = mysql_query("SELECT `email` FROM news");
// You are not using these numbers in the script you showed us. I am just
// leaving them in here to show you, how you can reuse the "$result"
// variable without querying the database again.
$num_rows = mysql_num_rows($result);
// We are reusing the "$result" here without re-querying the database, which
// speeds the whole process up and takes load away from the database. We are
// storing all receivers in a dedicated variable, to reuse them later on.
$receivers = array();
while ($row = mysql_fetch_array($result)) {
$receivers[] = $row['email'];
}
// Now, instead of querying the database again, we are using our stored mail
// addresses in "$receivers" to send the emails one by one. We could have
// done this part in the "while" loop before, but I wanted to stay close to
// your code, so you would recognize it ;)
foreach ($receivers as $receiver) {
// I have removed the "for" loop here, because it runs only once. If a loop
// only runs once and you control all its input, you really do not need a
// loop at all (except some exceptions, just in case someone knows one^^).
// You can actually just put the value of $receiver in $to. PHP is pretty
// good at typecasting of scalar types (integers, strings etc.), so you do
// not need to worry about that.
$to = $receiver;
$subject = 'Test Email';
// I am putting the headers into an array and implode them later on. This
// way we can make sure that we are not forgetting the new line characters
// somewhere.
$headers = array(
"From: example@example.com",
"MIME-Version: 1.0",
"Content-Type: text/html; charset=ISO-8859-1",
// I have removed the "BCC" header here, because this loops send out an
// email to each user seperately. It is basically me sending an email to
// you. Afterwards I copy&paste all the content to another new mail and
// send it to another fella. You would never know that you both got the
// same mail ;)
);
$message = '<html><body>';
$message .= '<h1 style="">Test Message</h1>';
$message .= '</body></html>';
// Imploding the headers.
$imploded_headers = implode("rn", $headers);
mail($to, $subject, $message, $imploded_headers);
}
这个代码基本上一次发送一封电子邮件。收到这样一封电子邮件的人都不知道邮件发到了哪个电子邮件地址。
正如代码中提到的，这个片段可以进一步优化。由于电子邮件发送本身是一个相当困难的领域，我真的建议你找到一些PHP库来捆绑整个事情并使用它。你可能会在整个电子邮件发送过程中犯很多错误，如果你不想很快被标记为垃圾邮件，我就不会在生产中运行这样的脚本。
将rn添加到：
$headers .= "BCC: $contactsrn";
每个页眉必须在新行上。