PHPMailer，带有文本区域表单和html

我正在尝试将php教程中的一些代码拼凑在一起，该教程展示了如何制作一个非常基本的PHPMailer表单，该表单向邮件列表发送纯文本电子邮件。简单性正是我最想要的，因为有几个人会使用这个表单，尽管我希望在表单中包含使用HTML的功能。因此，例如，如果我想使用<center>标签或插入托管图像<img src="www.link.com/img.jpg">，以使电子邮件更加丰富。

目前，我还不知道如何启用html嵌入。如果我将HTML代码放入表单中，它只需将代码输出为<b><i>text</i></b>，我希望电子邮件显示为：text

我以为它可能是IsHTML(True);变量，但当我发送电子邮件时，一切似乎都很好。如果我去掉<input type并将其改为<span，那么电子邮件消息就是空白的。

这是我正在处理的原始代码：http://yorkspace.wordpress.com/simple-php-mailing-list/

这是sendmail.php，可以在这里编辑消息，预览，然后发送：

<?php
require "maillist-settings.inc.php";
if ($_POST['preview'])
{
    $email_array = $_POST['emaillist'];
    if (is_array($email_array))
    {
        $subject = $_POST['emailtitle'];
        $message = $_POST['emailmessage'];
        $bcc_list = implode(", ", $email_array);
        echo "<table><tr><td>";    
            echo "<form action='"" . $_SERVER['SCRIPT_URL'] . "'" method='"POST'">";
            foreach ($email_array as $email_address)
            {
                echo "<input type='"hidden'" name='"emaillist[]'" value='"" .  $email_address . "'">";
            }
            echo "<input type='"hidden'" name='"emailtitle'" value='"" . $subject . "'">";
            echo "<input type='"hidden'" name='"emailmessage'" value='"". $message ."'">";
            echo "<input type='"submit'" name='"sendemail'" value='"Send Email'"></form>";
        echo "</td></tr></table>";
}
else if ($_POST['sendemail'])
{
    LoadLib_PHPMailer();
    $mail = new MLMail;
    $email_array = $_POST['emaillist'];
    if ( is_array($email_array) == TRUE )
    {
            $mail->AddAddress($mail->From);
            $mail->Subject = stripslashes($_POST['emailtitle']);
            $mail->Body = stripslashes($_POST['emailmessage']);
            if(!$mail->Send())
                echo "There has been an error sending email:<br><br><b>" . $mail->ErrorInfo . "</b>";
            else
                echo "Message has been sent successfully.<br><br><a href='"" . $_SERVER['SCRIPT_URL'] . "'">Send another message</a>";
            $mail->ClearAddresses();
    }
}
else
{
    $sEditSubject = $_POST['emailtitle'];
    if (isset($sEditSubject))
        $subject = $sEditSubject;
    else
        $subject = "";
    $sEditMessage = $_POST['emailmessage'];
    if (isset($sEditMessage))
        $message = $sEditMessage;
    else
    {
    $message = "'n'n'n<br>FOOTER</BR>'n'n";
    }
    echo "Subject:";
    echo "<br><input type='"text'" name='"emailtitle'" size='"80'" value='"" . htmlspecialchars(stripslashes($subject)) . "'"></input>";
    echo "<br>Message:";
    echo "<br><textarea name='"emailmessage'" rows='"20'" cols='"72'">" . htmlspecialchars(stripslashes($message)) . "</textarea>";
    echo "<br><input type='"submit'" name='"preview'" value='"Preview'"></form>";
}
?>

这是从sendmail.php 调用的maillist-settings.inc.php

<?php
$listname = "Mailing List";
$listfile = "list.csv";
$sPHPMAILER_PATH = "phpmailer";
$sProtocol = "http://";
$sReferrer = "index.php";
$bEmailSend = true;
$sSendType = "smtp";
$sFromEmailAddress = "email@email.com";
$sFromName = "my name";
$sSMTPHost = "mail.smtp.com";
$sSMTPAuth = true;
$sSMTPUser = "email@email.com";
$sSMTPPass = "password";
$iSMTPPort = 25;
$ishtml = true;
require $sPHPMAILERpath . "class.phpmailer.php";
require $sPHPMAILERpath . "class.smtp.php";
// Define parameters as class MLMail
class MLMail extends PHPMailer {
    // Set default variables for all new objects
    var $From;
    var $FromName;
    var $Mailer;
    var $IsHtml;
    var $WordWrap;
    var $Host;
    var $SMTPAuth;
    var $Username;
    var $Password;
    var $Port;
    function MLMail() {
        parent::SetLanguage('en','phpmailer/language/');
        $this->From = $GLOBALS['sFromEmailAddress'];
        $this->FromName = $GLOBALS['sFromName'];
        $this->Mailer = $GLOBALS['sSendType'];
        $this->IsHtml = $GLOBALS['ishtml'];
        $this->WordWrap = $GLOBALS['sWordWrap'];
        if ($this->Mailer == "smtp")
        {
            $this->Port = $GLOBALS['iSMTPPort'];
            $this->Host = $GLOBALS['sSMTPHost'];
            $this->SMTPAuth = $GLOBALS['sSMTPAuth'];
            if ($this->SMTPAuth) {
                $this->Username = $GLOBALS['sSMTPUser'];
                $this->Password = $GLOBALS['sSMTPPass'];
            }
        }
    }
}