php实现邮件发送并带有附件

　　<?

　　class CMailFile {

　　var $subject;

　　var $addr_to;

　　var $text_body;

　　var $text_encoded;

　　var $mime_headers;

　　var $mime_boundary = "--==================_846811060==_";

　　var $smtp_headers;

　　function CMailFile($subject,$to,$from,$msg,$filename,$downfilename,$mimetype = "application/octet-stream",$mime_filename = false) {

　　$this->subject = $subject;

　　$this->addr_to = $to;

　　$this->smtp_headers = $this->write_smtpheaders($from);

　　$this->text_body = $this->write_body($msg);

　　$this->text_encoded = $this->attach_file($filename,$downfilename,$mimetype,$mime_filename);

　　$this->mime_headers = $this->write_mimeheaders($filename, $mime_filename);

　　}

　　function attach_file($filename,$downfilename,$mimetype,$mime_filename) {

　　$encoded = $this->encode_file($filename);

　　if ($mime_filename) $filename = $mime_filename;

　　$out = "--" . $this->mime_boundary . "\n";

　　$out = $out . "Content-type: " . $mimetype . "; name=\"$filename\";\n";

　　$out = $out . "Content-Transfer-Encoding: base64\n";

　　$out = $out . "Content-disposition: attachment; filename=\"$downfilename\"\n\n";

　　$out = $out . $encoded . "\n";

　　$out = $out . "--" . $this->mime_boundary . "--" . "\n";

　　return $out;

　　}

　　function encode_file($sourcefile) {

　　if (is_readable($sourcefile)) {

　　$fd = fopen($sourcefile, "r");

　　$contents = fread($fd, filesize($sourcefile));

　　$encoded = chunk_split(base64_encode($contents));

　　fclose($fd);

　　}

　　return $encoded;

　　}

　　function sendfile() {

　　$headers = $this->smtp_headers . $this->mime_headers;

　　$message = $this->text_body . $this->text_encoded;

　　mail($this->addr_to,$this->subject,$message,$headers);

　　} www.glzy8.com

　　function write_body($msgtext) {

　　$out = "--" . $this->mime_boundary . "\n";

　　$out = $out . "Content-Type: text/plain; charset=\"us-ascii\"\n\n";

　　$out = $out . $msgtext . "\n";

　　return $out;

　　}

　　function write_mimeheaders($filename, $mime_filename) {

　　if ($mime_filename) $filename = $mime_filename;

　　$out = "MIME-version: 1.0\n";

　　$out = $out . "Content-type: multipart/mixed; ";

　　$out = $out . "boundary=\"$this->mime_boundary\"\n";

　　$out = $out . "Content-transfer-encoding: 7BIT\n";

　　$out = $out . "X-attachments: $filename;\n\n";

　　return $out;

　　}

　　function write_smtpheaders($addr_from) {

　　$out = "From: $addr_from\n";

　　$out = $out . "Reply-To: $addr_from\n";

　　$out = $out . "X-Mailer: PHP3\n";

　　$out = $out . "X-Sender: $addr_from\n";

　　return $out;

　　}

　　}

　　/*用法 - 例如:mimetype 为 "image/gif"

　　$mailfile = new CMailFile($subject,$sendto,$replyto,$message,$filename,$mimetype);

　　$mailfile->sendfile();

　　$subject -- 主题

　　$sendto -- 收信人地址

　　$replyto -- 回复地址

　　$message -- 信件内容

　　$filename -- 附件文件名

　　$downfilename -- 下載的文件名

　　$mimetype -- mime类型

　　*/

　　?>

　　<?php

　　require_once('emailclass.php');

　　//发送邮件

　　//主題

　　$subject = "test send email";

　　//收件人

　　$sendto = '[email protected]';

　　//發件人

　　$replyto = '[email protected]';

　　//內容 www.glzy8.com

　　$message = "test send email content";

　　//附件

　　$filename = 'test.jpg';

　　//附件類別

　　$mimetype = "image/jpeg";

　　$mailfile = new CMailFile($subject,$sendto,$replyto,$message,$filename,$excelname,$mimetype);

　　$mailfile->sendfile();

　　?>