如何正确运用PHP发送邮件函数_PHP教程

PHP发送邮件函数的应用代码示例：

1. #echo send_mail($_POST["email"],$tosubject,$_POST["errortext"]);
2. echo send_mail('[e-mail]','only a test mail for test php mail function','一封垃圾邮件');
3. echo time();
5. function send_mail($to, $subject = 'No subject', $body) {
6. $loc_host = "mail.server"; //发信计算机名，可随意
7. $smtp_acc = "[e-mail]"; //Smtp认证的用户名
8. $smtp_pass="pwdpwd"; //Smtp认证的密码，一般等同pop3密码
9. $smtp_host="smtp.163.com"; //SMTP服务器地址，类似 smtp.tom.com
10. $from="[e-mail]"; //发信人Email地址，你的发信信箱地址
11. $deliver=$smtp_acc; //回复到指定邮箱
12. $headers = "Content-Type: text/plain; charset="gb2312"rnContent-Transfer-Encoding: base64";
13. $lb="rn"; //linebreak
14. $hdr = explode($lb,$headers); //解析后的hdr
15. if($body) {$bdy = preg_replace("/^./","..",explode($lb,$body));}//解析后的Body
17. $smtp = array(
18. //1、EHLO，期待返回220或者250
19. array("EHLO ".$loc_host.$lb,"220,250","HELO error: "),
20. //2、发送Auth Login，期待返回334
21. array("AUTH LOGIN".$lb,"334","AUTH error:"),
22. //3、发送经过Base64编码的用户名，期待返回334
23. array(base64_encode($smtp_acc).$lb,"334","AUTHENTIFICATION error : "),
24. //4、发送经过Base64编码的密码，期待返回235
25. array(base64_encode($smtp_pass).$lb,"235","AUTHENTIFICATION error : "));
26. //5、发送Mail From，期待返回250
27. $smtp[] = array("MAIL FROM: ".$from.">".$lb,"250","MAIL FROM error: ");
28. //6、发送Rcpt To。期待返回250
29. $smtp[] = array("RCPT TO: ".$to.">".$lb,"250","RCPT TO error: ");
30. //7、发送DATA，期待返回354
31. $smtp[] = array("DATA".$lb,"354","DATA error: ");
32. //8.0、发送From
33. $smtp[] = array("From: ".$deliver.$lb,"","");
34. //8.2、发送To
35. $smtp[] = array("To: ".$to.$lb,"","");
36. //8.1、发送标题
37. $smtp[] = array("Subject: ".$subject.$lb,"","");
38. //8.3、发送其他Header内容
39. foreach($hdr as $h) {$smtp[] = array($h.$lb,"","");}
40. //8.4、发送一个空行，结束Header发送
41. $smtp[] = array($lb,"","");
42. //8.5、发送信件主体
43. if($bdy) {foreach($bdy as $b) {$smtp[] = array(base64_encode($b.$lb).$lb,"","");}}
44. //9、发送“.”表示信件结束，期待返回250
45. $smtp[] = array(".".$lb,"250","DATA(end)error: ");
46. //10、发送Quit，退出，期待返回221
47. $smtp[] = array("QUIT".$lb,"221","QUIT error: ");
49. //打开smtp服务器端口
50. $fp = @fsockopen($smtp_host, 25);
51. if (!$fp) echo "b>Error:b> Cannot conect to ".$smtp_host."br>";
52. while($result = @fgets($fp, 1024)){if(substr($result,3,1) == " ") { break; }}
54. $result_str="";
55. //发送smtp数组中的命令/数据
56. foreach($smtp as $req){
57. //发送信息
58. @fputs($fp, $req[0]);
59. //如果需要接收服务器返回信息，则
60. if($req[1]){
61. //接收信息
62. while($result = @fgets($fp, 1024)){
63. if(substr($result,3,1) == " ") { break; }
64. };
65. if (!strstr($req[1],substr($result,0,3))){
66. $result_str.=$req[2].$result."br>";
67. }
68. }
69. }
70. //关闭连接
71. @fclose($fp);
72. return $result_str;
73. }

希望上面这段代码示例能让大家充分掌握PHP发送邮件函数的运用。

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