20080511 - php send_mail()

写了一个网站，反馈页面要用到 php 发邮件，无奈网站空间的 php 没有配置可用的邮件服务器，发现 php 也可通过

socket 裸发邮件。配一个可用的帐号，下面函数就可用了。

1function send_mail($to, $subject = '未标题', $body){

2 $loc_host = "smtp.126.com";

3 $smtp_acc = "youraccount";

4 $smtp_pass = "yourpassword";

5 $smtp_host = "smtp.126.com";

6 $from = "admin@126.com";

7

8 $headers = "Content-Type: text/plain; charset=\"gb2312\"\r\nContent-Transfer-Encoding:base64";

9 $lb = "\r\n";

10 $hdr = explode($lb, $headers);

11 if($body){

12 $bdy = preg_replace("/^\./", "..", explode($lb, $body));

13 }

14

15 $smtp = array(

16 array("EHLO ".$loc_host.$lb, "220, 250", "HELO error: "),

17 array("AUTH LOGIN".$lb, "334", "AUTH error: "),

18 array(base64_encode($smtp_acc).$lb, "334", "AUTHENTIFICATION error: "),

19 array(base64_encode($smtp_pass).$lb, "235", "AUTHENTIFICATION error:")

20 );

21

22 $smtp[] = array("MAIL FROM: <".$from.">".$lb, "250", "MAIL FROM error: ");

23 $smtp[] = array("RCPT TO: <".$to.">".$lb, "250", "RCPT TO error: ");

24 $smtp[] = array("DATA".$lb, "354", "DATA error: ");

25

26 $smtp[] = array("From: ".$from.$lb, "", "");

27 $smtp[] = array("To: ".$to.$lb, "", "");

28 $smtp[] = array("Subject: ".$subject.$lb, "", "");

29

30 foreach($hdr as $h){

31 $smtp[] = array($h.$lb, "", "");

32 }

33

34 $smtp[] = array($lb, "", "");

35

36 if($bdy){

37 foreach($bdy as $b){

38 $smtp[] = array(base64_encode($b.$lb).$lb, "", "");

39 }

40 }

41 $smtp[] = array(".".$lb, "250", "DATA(end) error: ");

42 $smtp[] = array("QUIT".$lb, "221", "QUIT error: ");

43

44 $fp = (@fsockopen($smtp_host, 25));

45 if(!$fp) echo "<strong>Error:</strong> Cannot connect to ".$smtp_host."<br />";

46 while($result = @fgets($fp, 1024)){

47 if(substr($result, 3, 1) == " "){ break; }

48 }

49 $result_str = "";

50 foreach($smtp as $req){

51 @fputs($fp, $req[0]);

52 if($req[1]){

53 while($result = @fgets($fp, 1024)){

54 if(substr($result, 3, 1) == " "){ break; }

55 }

56 if(!strstr($req[1], substr($result, 0, 3))){

57 $result_str.= $reg[2].$result."<br />";

58 }

59 }

60 }

61 @fclose($fp);

62 return $result_str;

63}

64

65