我在使用 PHPMailer 获取内联图像时遇到问题。没有以下行（即如果我将其注释掉）

$success = $mail->AddEmbeddedImage($ImagePath, $ImageCID, $ImageName, $ImageEncoding, $ImageType, $ImageDisposition);

效果很好。如果我重新添加它，我会收到一封空白电子邮件（尝试过 Outlook 和 Gmail）。我添加了“$success =”以确保它正在工作并且确实如此。

';
$Body .= 'This is a test from SendEmail and contains default text in the message body.';
$Body .= 'And an image... ';
$Body .= '

';
$SendParams = array("SendTo"=>array("xx@gmail.com, XX", "xx@example.com, XX/example"), 
                    "Body"=>$Body,
                    "Subject"=>"This is the default Subject",
                    "Images"=>$ImageArray
                    );
SendEmail($SendParams);
// End Test data and calls

function SendEmail($params) {
    $mail = new PHPMailer;
    $mail->IsHTML(true);
    $mail->isSMTP();
    $mail->SMTPAuth = true;
    $mail->SMTPSecure = 'tls';
    $mail->Host = "smtp.gmail.com";
    $mail->Mailer = "smtp";
    $mail->Port = 587; //use port 465 when using SMPTSecure = 'ssl'
    $mail->Username = "exampele@gmail.com";
    $mail->Password = "xxxxxxxxxxxxxxxxxxx";    // $mail->SMTPDebug = SMTP::DEBUG_SERVER;
    if (!isset($params)) {
        die("Kaput!");
    }
    $SendTo = isset($params["SendTo"]) ?  $params["SendTo"] : array("xx@example.com, XX/example");
    $Body = isset($params["Body"]) ?  $params["Body"] : "No Message Body - may be a Test!";
    $Subject = isset($params["Subject"]) ?  $params["Subject"] : "No Message Subject - may be a Test!";
    foreach($SendTo as $recipient) {
        $recipient_array = explode(",", $recipient);
        $SendEmail = $recipient_array[0];
        $SendName = $recipient_array[1];
        $mail->AddAddress($SendEmail, $SendName);
    }
    if (isset($params["Images"])) {
        foreach($params["Images"] as $ImageData) {
            $ImageData_array = explode("|", $ImageData);
            $ImagePath = $ImageData_array[0];
            $ImageCID = $ImageData_array[1];
            $ImageName = $ImageData_array[2];
            $ImageEncoding = $ImageData_array[3];
            $ImageType = $ImageData_array[4];
            $ImageDisposition = $ImageData_array[5];
            // Below is the line causing the problem
            $success = $mail->AddEmbeddedImage($ImagePath, $ImageCID, $ImageName, $ImageEncoding, $ImageType, $ImageDisposition);
            // The below prints expected values for the variables ("Failed!" does not print)
            if ($success)
                echo "

Image: " . $ImagePath . ", " . $ImageCID . ", " . $ImageName . ", " . $ImageEncoding . ", " . $ImageType . ", " . $ImageDisposition;
            else
                echo "Failed!";
        }
    }
    $mail->Body = $Body;
    $mail->Subject = $Subject;
    $mail->SetFrom('admin@example.com', 'example Admin');
    $mail->addReplyTo('admin@example.com');
    if (!$mail->send()) {
        echo "Mailer Error: " . $mail->ErrorInfo;
     } else {
        echo "Message sent!";
    }
}
?>

这是屏幕输出：

图片：../images/Logo.jpg、Logo、Logo.jpg、、、内联

图片：../podbanks/images/XX.jpg、XX、XX.jpg、、、内联

---

邮件：对象(PHPMailer\PHPMailer\PHPMailer)#1 (71) { ["优先级"]=> NULL ["CharSet"]=> 字符串(10) "iso-8859-1" ["ContentType"]=> 字符串(9) "text/html" ["编码"]=> 字符串(4) "8bit" ["ErrorInfo"]=> 字符串(0) "" ["发件人"]=> 字符串(18) "admin@example.com" ["发件人名称"]=> 字符串(14) “示例管理员”[“发件人”]=> string(18)“admin@example.com” ["Subject"]=> string(27) "这是默认主题" ["Body"]=> string(215) "这是来自 SendEmail 的测试，包含默认文本 在消息正文中。还有一个图像..." ["AltBody"]=> string(0) "" ["Ical"]=> 字符串(0) "" ["MIMEBody":protected]=> 字符串(0) "" ["MIMEHeader":protected]=> string(0) "" ["mailHeader":protected]=> string(0) "" ["WordWrap"]=> int(0) ["Mailer"]=> string(4) "smtp" ["Sendmail"]=> string(18) "/usr/sbin/sendmail" ["UseSendmailOptions"]=> bool(true) ["ConfirmReadingTo"]=> string(0) "" ["主机名"]=> 字符串(0) "" ["MessageID"]=> 字符串(0) "" ["MessageDate"]=> 字符串(0) "" ["主机"]=> 字符串(14) "smtp.gmail.com" ["端口"]=> int(587) ["Helo"]=> 字符串(0) "" ["SMTPSecure"]=> 字符串(3) “tls” [“SMTPAutoTLS”]=> bool(true) [“SMTPAuth”]=> bool(true) ["SMTPOptions"]=> 数组(0) { } ["用户名"]=> 字符串(22) “examplemail@gmail.com” [“密码”]=> string(16) “shotlzacfvdubehm” ["AuthType"]=> 字符串(0) "" ["oauth":protected]=> NULL ["超时"]=> int(300) ["SMTPDebug"]=> int(0) ["Debugoutput"]=> string(4) "html" ["SMTPKeepAlive"]=> bool(false) ["SingleTo"]=> bool(false) ["SingleToArray":protected]=> array(0) { } ["do_verp"]=> bool(false) ["AllowEmpty"]=> bool(false) ["DKIM_selector"]=> string(0) "" ["DKIM_identity"]=> 字符串(0) "" ["DKIM_passphrase"]=> 字符串(0) "" ["DKIM_domain"]=> 字符串(0) "" ["DKIM_private"]=> 字符串(0) "" ["DKIM_private_string"]=> 字符串(0) "" ["action_function"]=> 字符串(0) "" ["XMailer"]=> 字符串(0) "" ["smtp":protected]=> NULL ["to":protected]=> 数组(2) { [0]=> 数组(2) { [0]=> 字符串(19) "aa@gmail.com" 1=> 字符串(10) "AA" } 1=> 数组(2) { [0]=> 字符串(15) "aa@example.com" 1=> 字符串(13) "A/example" } } ["cc":protected]=> 数组(0) { } ["bcc":protected]=> 数组(0) { } ["ReplyTo":protected]=> 数组(1) { ["admin@example.com"]=> 数组(2) { [0]=> 字符串(18) "admin@example.com" 1=> 字符串(0) "" } } ["all_recipients":protected]=> 数组(2) { ["aa@gmail.com"]=> bool(true) ["ag@example.com"]=> bool(true) } ["RecipientsQueue":protected]=> 数组(0) { } ["ReplyToQueue":protected]=> array(0) { } ["attachment":protected]=> 数组(2) { [0]=> 数组(8) { [0]=> 字符串(31) "../images/clients/Logo.jpg" 1=> string(13) "Logo.jpg" 2=> 字符串(13) "Logo.jpg" [3]=> 字符串(0) "" [4]=> 字符串(10) "图像/jpeg" [5]=> bool(false) [6]=> string(6) "内联" [7]=> string(9) "徽标" } 1=> 数组(8) { [0]=> 字符串(35) "../images/XX.jpg" 1=> 字符串(16) "XX.jpg" 2=> 字符串(16) "XX.jpg" [3]=> 字符串(0) "" [4]=> 字符串(10) “图像/jpeg” [5]=> bool(false) [6]=> 字符串(6) “内联”[7]=> string(3) "XX" } } ["CustomHeader":protected]=> array(0) { } ["lastMessageID":protected]=> string(0) "" ["message_type":protected]=> string(0) "" ["boundary":protected]=> 数组(0) { } ["语言":受保护]=> 数组(0) { } ["error_count":protected]=> int(0) ["sign_cert_file":protected]=> 字符串(0) "" ["sign_key_file":protected]=> 字符串(0) "" [“sign_extracerts_file”：受保护]=> string(0)“” [“sign_key_pass”：受保护] = > 字符串（0）“” [“例外”：受保护] = > bool(false) ["uniqueid":protected]=> string(0) "" } 消息已发送！

我也找不到任何综合文档 - 甚至在 GitHub 上也找不到：3731。我最接近的是这个。但我仍然不明白第三个参数到底在做什么。我想覆盖该名称吗？为什么？我应该使用什么编码（我尝试了 Base64 并将两者都留空）？除了“内联”处置之外，还存在哪些选项？等等...