这篇文章主要介绍了php实现的发送带附件邮件类,是php程序设计中非常常见的实用技巧,实例演示了邮件类及对应的demo示例,需要的朋友可以参考下

本文实例讲述了php实现的发送带附件邮件类的方法，是一个非常实用的功能。分享给大家供大家参考。具体方法如下：

emailclass.php类文件如下：

1. <?
2. class CMailFile {
3. var $subject;
4. var $addr_to;
5. var $text_body;
6. var $text_encoded;
7. var $mime_headers;
8. var $mime_boundary = "--==================_846811060==_";
9. var $smtp_headers;
10. function CMailFile($subject,$to,$from,$msg,$filename,$downfilename,$mimetype = "application/octet-stream",$mime_filename = false) {
11. $this->subject = $subject;
12. $this->addr_to = $to;
13. $this->smtp_headers = $this->write_smtpheaders($from);
14. $this->text_body = $this->write_body($msg);
15. $this->text_encoded = $this->attach_file($filename,$downfilename,$mimetype,$mime_filename);
16. $this->mime_headers = $this->write_mimeheaders($filename, $mime_filename);
17. }
18. function attach_file($filename,$downfilename,$mimetype,$mime_filename) {
19. $encoded = $this->encode_file($filename);
20. if ($mime_filename) $filename = $mime_filename;
21. $out = "--" . $this->mime_boundary . "\n";
22. $out = $out . "Content-type: " . $mimetype . "; name=\"$filename\";\n";
23. $out = $out . "Content-Transfer-Encoding: base64\n";
24. $out = $out . "Content-disposition: attachment; filename=\"$downfilename\"\n\n";
25. $out = $out . $encoded . "\n";
26. $out = $out . "--" . $this->mime_boundary . "--" . "\n";
27. return $out;
28. }
29. function encode_file($sourcefile) {
30. if (is_readable($sourcefile)) {
31. $fd = fopen($sourcefile, "r");
32. $contents = fread($fd, filesize($sourcefile));
33. $encoded = chunk_split(base64_encode($contents));
34. fclose($fd);
35. }
36. return $encoded;
37. }
38. function sendfile() {
39. $headers = $this->smtp_headers . $this->mime_headers;
40. $message = $this->text_body . $this->text_encoded;
41. mail($this->addr_to,$this->subject,$message,$headers);
42. }
43. function write_body($msgtext) {
44. $out = "--" . $this->mime_boundary . "\n";
45. $out = $out . "Content-Type: text/plain; charset=\"us-ascii\"\n\n";
46. $out = $out . $msgtext . "\n";
47. return $out;
48. }
49. function write_mimeheaders($filename, $mime_filename) {
50. if ($mime_filename) $filename = $mime_filename;
51. $out = "MIME-version: 1.0\n";
52. $out = $out . "Content-type: multipart/mixed; ";
53. $out = $out . "boundary=\"$this->mime_boundary\"\n";
54. $out = $out . "Content-transfer-encoding: 7BIT\n";
55. $out = $out . "X-attachments: $filename;\n\n";
56. return $out;
57. }
58. function write_smtpheaders($addr_from) {
59. $out = "From: $addr_from\n";
60. $out = $out . "Reply-To: $addr_from\n";
61. $out = $out . "X-Mailer: PHP3\n";
62. $out = $out . "X-Sender: $addr_from\n";
63. return $out;
64. }
65. }
66. /*用法 - 例如:mimetype 为 "image/gif"
67. $mailfile = new CMailFile($subject,$sendto,$replyto,$message,$filename,$mimetype);
68. $mailfile->sendfile();
69. $subject -- 主题
70. $sendto -- 收信人地址
71. $replyto -- 回复地址
72. $message -- 信件内容
73. $filename -- 附件文件名
74. $downfilename -- 下載的文件名
75. $mimetype -- mime类型
76. */
77. ?>

Demo示例文件如下：

1. <?php
2. require_once('emailclass.php');
3. //发送邮件
4. //主題
5. $subject = "test send email";
6. //收件人
7. $sendto = 'abc@163.com';
8. //發件人
9. $replyto = 'cdf@163.com';
10. //內容
11. $message = "test send email content";
12. //附件
13. $filename = 'test.jpg';
14. //附件類別
15. $mimetype = "image/jpeg";
16. $mailfile = new CMailFile($subject,$sendto,$replyto,$message,$filename,$excelname,$mimetype);
17. $mailfile->sendfile();
18. ?>

相信本文所述对大家php程序设计的学习有一定的借鉴价值。