给多个地址发邮件的类

<?php

////////////////////////////////////////////////////////////
//   EmailClass 0.5
//   class for sending mail
//
//   Paul Schreiber
//   php@paulschreiber.com
//   http://paulschreiber.com/
//
//   parameters
//   ----------
//   - subject, message, senderName, senderEmail and toList are required
//   - ccList, bccList and replyTo are optional
//   - toList, ccList and bccList can be strings or arrays of strings
//     (those strings should be valid email addresses
//
//   example
//   -------
//   $m = new email ( "hello there",            // subject
//                    "how are you?",           // message body
//                    "paul",                   // sender's name
//                    "foo@foobar.com",         // sender's email
//                    array("paul@foobar.com", "foo@bar.com"), // To: recipients
//                    "paul@whereever.com"      // Cc: recipient
//                   );
//
//       print "mail sent, result was" . $m->send();
//
//
//

if ( ! defined( 'MAIL_CLASS_DEFINED' ) ) {
        define('MAIL_CLASS_DEFINED', 1 );

class email {

        // the constructor!
        function email ( $subject, $message, $senderName, $senderEmail, $toList, $ccList=0, $bccList=0, $replyTo=0) {
                $this->sender = $senderName . " <$senderEmail>";
                $this->replyTo = $replyTo;
                $this->subject = $subject;
                $this->message = $message;

                // set the To: recipient(s)
                if ( is_array($toList) ) {
                        $this->to = join( $toList, "," );
                } else {
                        $this->to = $toList;
                }

                // set the Cc: recipient(s)
                if ( is_array($ccList) && sizeof($ccList) ) {
                        $this->cc = join( $ccList, "," );
                } elseif ( $ccList ) {
                        $this->cc = $ccList;
                }

                // set the Bcc: recipient(s)
                if ( is_array($bccList) && sizeof($bccList) ) {
                        $this->bcc = join( $bccList, "," );
                } elseif ( $bccList ) {
                        $this->bcc = $bccList;
                }

        }

        // send the message; this is actually just a wrapper for
        // PHP's mail() function; heck, it's PHP's mail function done right :-)
        // you could override this method to:
        // (a) use sendmail directly
        // (b) do SMTP with sockets
        function send () {
                // create the headers needed by PHP's mail() function

                // sender
                $this->headers = "From: " . $this->sender . "\n";

                // reply-to address
                if ( $this->replyTo ) {
                        $this->headers .= "Reply-To: " . $this->replyTo . "\n";
                }

                // Cc: recipient(s)
                if ( $this->cc ) {
                        $this->headers .= "Cc: " . $this->cc . "\n";
                }

                // Bcc: recipient(s)
                if ( $this->bcc ) {
                        $this->headers .= "Bcc: " . $this->bcc . "\n";
                }

                return mail ( $this->to, $this->subject, $this->message, $this->headers );
        }
}

}
?>