使用PHP发送带有PDF文件附件的电子邮件

好的,这是我的第一个帖子,我在线搜索但没有运气.
我正在做实习,我正在开展一个项目,要求我创建一个网页,当用户提交他/她的信息时生成一个pdf文件.一旦客户点击提交按钮,就需要做三件事：

>将信息存储到数据库(完成),
>向员工发送包含新客户信息(已完成)的电子邮件,以及
>向客户发送带有pdf文件附件(不工作)的“谢谢消息”电子邮件.

我的意思是,客户确实收到了一封电子邮件,但是当他/她打开pdf文件时,我收到以下错误消息：

“Acrobat Could not oen ‘file_name’ because it is either not a supported file type or because the file has been damaged(for example,it was sent as an email attachment and wasn’t correctly decoded)…”

请记住,这是我创建pdf文件附件项目的时间.如果有人可以帮我解决这个问题,那就太好了.谢谢！

这是我的代码：

<?PHP
// once there are no errors,as soon as the customer hits the submit button,it needs to send an email to the staff with the customer information
        $msg = "Name: " .$_POST['name'] . "\n"
            ."Email: " .$_POST['email'] . "\n"
            ."Phone: " .$_POST['telephone'] . "\n"
            ."Number Of Guests: " .$_POST['numberOfGuests'] . "\n"
            ."Date Of Reunion: " .$_POST['date'];
        $staffEmail = "staffinfo";

        mail($staffEmail,"You have a new customer",$msg); // using the mail PHP function to send the email. mail(to,subject line,message)

        //once the customer submits his/her information,he/she will receive a thank you message attach with a pdf file.
        $pdf=new FPDF();
        $pdf->AddPage();
        $pdf->SetFont("Arial","B",16);
        $pdf->Cell(40,10,"Hello World!");

        // email information
        $to = $_POST['email'];
        $from = $staffEmail;
        $subject = "Thank you for your business";
        $message = "Thank you for submitting your information!";

        // a random hash will be necessary to send mixed content
        $separator = md5(time());

        // carriage return type (we use a PHP end of line constant)
        $eol = PHP_EOL;

        // attachment name
        $filename = "yourinformation.pdf";

        // encode data (puts attachment in proper format)
        $pdfdoc = $pdf->Output("","S");
        $attachment = chunk_split(base64_encode($pdfdoc));

        // encode data (multipart mandatory)
        $headers = "From: ".$from.$eol;
        $headers .= "MIME-Version: 1.0".$eol;
        $headers .= "Content-Type: multipart/mixed; boundary=\"".$separator."\"".$eol.$eol;
        $headers .= "Content-Transfer-Enconding: 7bit".$eol;
        $headers .= "This is a MIME encoded message.".$eol.$eol;

        // message
        $headers .= "--".$separator.$eol;
        $headers .= "Content-Type: text/html; charsrt=\"iso-8859-1\"".$eol;
        $headers .= $message.$eol.$eol;

        // attachment
        $headers .= "--".$separator.$eol;
        //$headers .= "Content-Type: application/octet-stream; name=\"".$filename."\"".$eol;
        $headers .= "Content-Type: application/zip; name=\"".$filename."\"".$eol;
        $headers .= "Content-transfer-encoding: base64".$eol;
        $headers .= "Content-disposition: attachment".$eol.$eol;
        $headers .= $attachment.$eol.$eol;
        $headers .= "--".$separator."--";

        // send message
        mail($to,$subject,$message,$headers);

    }
}
?>

// once there are no errors,it needs to send an email to the staff with the customer information
        $msg = "Name: " .$_POST['name'] . "\n"
            ."Email: " .$_POST['email'] . "\n"
            ."Phone: " .$_POST['telephone'] . "\n"
            ."Number Of Guests: " .$_POST['numberOfGuests'] . "\n"
            ."Date Of Reunion: " .$_POST['date'];
        $staffEmail = "staffemail";

        mail($staffEmail,he/she will receive a thank you message attach with a pdf file.
        // creating a pdf file
        $pdf_filename = tempnam(sys_get_temp_dir(),"pdf");
        $pdf=new FPDF();
        $pdf->AddPage();
        $pdf->SetFont("Arial","Title");
        $pdf->Ln();
        $pdf->SetFont("Arial","",12);
        $pdf->Cell(15,"Name:");
        $pdf->SetFont("Arial","I",$_POST['name']);
        $pdf->Ln();
        $pdf->SetFont("Arial","Email:");
        $pdf->SetFont("Arial",$_POST['email']);
        $pdf->Ln();
        $pdf->SetFont("Arial","Phone:");
        $pdf->SetFont("Arial",$_POST['telephone']);
        $pdf->Ln();
        $pdf->SetFont("Arial",12);
        $pdf->Cell(40,"Number of Guests:");
        $pdf->SetFont("Arial",$_POST['numberOfGuests']);
        $pdf->Ln();
        $pdf->SetFont("Arial","Date Of Reunion:");
        $pdf->SetFont("Arial",$_POST['date']);
        // if file doesn't exists or if it is writable,create and save the file to a specific place 
        if(!file_exists($pdf_filename) || is_writable($pdf_filename)){
            $pdf->Output($pdf_filename,"F");
        } else { 
            exit("Path Not Writable");
        }

        // using the PHPmailer class
        // create a new instance called $mail and use its properties and methods.
        $mail = new PHPMailer();
        $staffEmail = "staffemail";
        $mail->From = $staffEmail;
        $mail->FromName = "name";
        $mail->AddAddress($_POST['email']);
        $mail->AddReplyTo($staffEmail,"name");

        $mail->AddAttachment($pdf_filename);
        $mail->Subject = "PDF file attachment";

        $mail->Body = "message!";

        // if mail cannot be sent,diplay error message
        //if(!$mail->Send()){
            //echo "<div id=\"mailerrors\">Message Could not be sent</div>";
            //echo "<div id=\"mailerrors\">Mailer Error: " . $mail->ErrorInfo . "</div>";
        //} else { // else...if mail is sent,diplay sent message
            //echo "<div id=\"mailerrors\">Message sent</div>";
        //}

        // delete the temp file
        unlink($pdf_filename);
    }
}