php mail function: Sending mails to BCC only

the first param of php mail function is TO. Is there anyway to skip this parameter and u开发者_如何学运维se only CC/BCC to send bulk mails?

Thanks

An email message does not require a To header field. So you could pass null or a blank string for the to parameter, set up your own header containing the BCC header field and provide it with the fourth parameter additional_headers of mail:

$headerFields = array(
    'BCC: user1@example.com, user2@example.com, user3@example.com'
);
mail(null, $subject, $message, implode("\r\n", $headerFields));

You can specify fourth headers parameter for that like this:

    $xheaders = "";
    $xheaders .= "From: <$from>\n";
    $xheaders .= "X-Sender: <$from>\n";
    $xheaders .= "X-Mailer: PHP\n"; // mailer
    $xheaders .= "X-Priority: 1\n"; //1 Urgent Message, 3 Normal
    $xheaders .= "Content-Type:text/html; charset=\"iso-8859-1\"\n";
    $xheaders .= "Bcc:email@example.com"\n";
    $xheaders .= "Cc:email2@example.com\n";

    //.......

    mail($to, $subject, $msg, $xheaders);

In the $to field you can specify your email or whatever you like.

Note that you can also specify multiple email addresses by separating them with a comma although I am not sure about exact number of email you can specify this way.

You can put your own email address, or another dummy, in the To header, and put all the recipient addresses in Bcc.