PHP发送带有图像附件的电子邮件

Question

我正在尝试创建一个脚本,该脚本将通过电子邮件发送从我正在开发的iphone应用程序上传的图像.

我已经能够通过脚本向我发送带附件的电子邮件.但是,附件总是0kb.

这是我的代码:

// Standard email info


$to = 'example@example.com'; 
 $subject = 'Email with an image attached'; 

 // This variable will be used when declaring the "boundaries"
 // for the different sections of the email
 $boundary = md5(date('r', time()));

 //Initial Headers 
 $headers = "MIME-Version: 1.0\r\n"; // <- the "\r\n" indicate a carriage return and newline, respectively
 $headers .= "From: <example@example.com>\r\n";
 $headers .= "Content-Type: multipart/mixed; boundary=" . $boundary . "\r\n"; // <- This is 
 // saying the there will be more than one (a "mix") of Content Types in this email.
 // The "boundary" value will indicate when each content type will start

  //First Content Type
 $message = "\r\n\r\n--" . $boundary . "\r\n"; // <- This indicates that I'm going to start
 // declaring headers specific to this section of the email. 
 // MAKE SURE there's only ONE(1) "\r\n" between the above boundry and the first header below (Content-Type)
 $message .= "Content-type: text/plain; charset=\"iso-8859-1\"\r\n"; // <- Here I'm saying this content should be plain text
 $message .= "Content-Transfer-Encoding: 7bit\r\n\r\n";

 // Body of the email for the headers I just declared 
 $message .= "Someone filled out the form. See their info below:\r\n";
 $message .= "Name:";

//Second Content Type
 $message .= "\r\n\r\n--" . $boundary . "\r\n"; // <- This idicates that I'm going to start 
 // declaring some more headers for the content below
 // MAKE SURE there's only ONE(1) "\r\n" between the above boundry and the first header below (Content-Type)
 $message .= "Content-type: image/jpeg\r\n"; // <- Here I'm saying that this Content Type is for a JPEG image
 $message .= "Content-Transfer-Encoding: base64\r\n"; // <- this is saying that this section's content will be base64 Encoded
 $message .= "Content-Disposition: attachment; filename=\"Image.jpg\"\r\n"; // <- This is saying the content below should be an attachment and gives it a file name

 // The base64_encode below is necessary because this is a file. 
 $message .= base64_encode(file_get_contents($_FILES["userfile"]["name"])); 

 $message .= "\r\n\r\n--" . $boundary . "--"; // <- This indicates the end of the boundries. Notice the additional "--" after the boundry's value.

 // Send the email using "mail()".
 // Adding the "$mail_sent = " before "mail()" will store TRUE in $mail_sent if the email is sent successfully
 // Adding the "@" sign before "mail()" will disable error display so users
 // won't see the actual error info if it fails, just "Mail failed".
 $mail_sent = @mail($to, $subject, $message, $headers); 

 //Check to see if the email was sent successfully ($mail_sent = true).
 //If so, display "Mail Sent" to the screen, else display "Mail Failed".
 echo $mail_sent ? "Mail sent" : "Mail failed"; 

一切正常,但附件是0kb.

任何帮助表示赞赏.

谢谢.

Answer 1

        // to, from, subject, message body, attachment filename, etc.
        $to = "to@to.com";
        $from = "from@from.com";
        $subject = "subject";
        $message = "this is the message body";
        $filename = "/home/user/file.jpeg";
        $fname = "file.jpeg";

        $headers = "From: $from"; 
        // boundary 
        $semi_rand = md5(time()); 
        $mime_boundary = "==Multipart_Boundary_x{$semi_rand}x"; 

        // headers for attachment 
        $headers .= "\nMIME-Version: 1.0\n" . "Content-Type: multipart/mixed;\n" . " boundary=\"{$mime_boundary}\""; 

        // multipart boundary 
        $message = "This is a multi-part message in MIME format.\n\n" . "--{$mime_boundary}\n" . "Content-Type: text/plain; charset=\"iso-8859-1\"\n" . "Content-Transfer-Encoding: 7bit\n\n" . $message . "\n\n"; 
        $message .= "--{$mime_boundary}\n";

        // preparing attachments            
            $file = fopen($filename,"rb");
            $data = fread($file,filesize($filename));
            fclose($file);
            $data = chunk_split(base64_encode($data));
            $message .= "Content-Type: {\"application/octet-stream\"};\n" . " name=\"".$fname."\"\n" . 
            "Content-Disposition: attachment;\n" . " filename=\"$fname\"\n" . 
            "Content-Transfer-Encoding: base64\n\n" . $data . "\n\n";
            $message .= "--{$mime_boundary}--\n";


        // send
        //print $message;

        $ok = @mail($to, $subject, $message, $headers, "-f " . $from);