search

Home  >  Article  >  Backend Development  >  SMTP email sending class written in PHP

SMTP email sending class written in PHP

WBOY
WBOYOriginal
2016-07-25 08:54:40865browse
  2. $smtpserver = "*****";
  3. $smtpserverport = 25;
  4. $smtpuser = "******";
  5. $smtppass = "***** **";
  6. $smtp = new smtp($smtpserver, $smtpserverport, true, $smtpuser, $smtppass); //A true here means that authentication is used, otherwise authentication is not used.
  7. $smtp-> ;debug = false;
  8. //$emailtype = "HTML";
  9. for ($i=0; $i<5; $i++) {
  10. $smtp->sendmail("*****", "* *****", "Hello world!","This is only a test!");
  11. }
  12. echo "A total of $i emails were sent! ";
  13. ?>
Copy code

The following is the implementation of the specific class.

  3. class smtp {

  4. /* Public Variables */
  5. var $smtp_port;
  6. var $time_out;
  7. var $host_name;
  8. var $log_file;
  9. var $relay_host;
  10. var $debug;
  11. var $auth;
  12. var $user;
  13. var $pass;
  14. /* Private Variables */
  15. var $sock;
  16. /* Constractor */
  17. function smtp($relay_host = "", $smtp_port = 25, $auth = false, $user, $pass)
  18. {
  19. $this->debug = false;
  20. $this->smtp_port = $smtp_port;
  21. $this->relay_host = $relay_host;
  22. $this->time_out = 30; //is used in fsockopen()
  23. $this->auth = $auth; //auth
  24. $this->user = $user;
  25. $this->pass = $pass;
  26. $this->host_name = "localhost"; //is used in HELO command
  27. $this->log_file = "";
  28. $this->sock = false;
  29. }
  30. /* Main Function */
  31. function sendmail($to, $from, $subject = "", $body = "", $mailtype= "", $cc = "", $bcc = "", $additional_headers = "")
  32. {
  33. $mail_from = $this->get_address($this->strip_comment($from));
  34. $body = ereg_replace("(^|( ))(.)", "1.3", $body);
  35. $header .= "MIME-Version:1.0 ";
  36. if ($mailtype == "HTML") {
  37. $header .= "Content-Type:text/html ";
  38. }
  39. $header .= "To: " . $to . " ";
  40. if ($cc != "") {
  41. $header .= "Cc: " . $cc . " ";
  42. }
  43. $header .= "From: $from<" . $from . ">; ";
  44. $header .= "Subject: " . $subject . " ";
  45. $header .= $additional_headers;
  46. $header .= "Date: " . date("r") . " ";
  47. $header .= "X-Mailer:By Redhat (PHP/" . phpversion() . ") ";
  48. list($msec, $sec) = explode(" ", microtime());
  49. $header .= "Message-ID: <" . date("YmdHis", $sec) . "." . ($msec * 1000000) . "." . $mail_from . ">; ";
  50. $TO = explode(",", $this->strip_comment($to));
  51. if ($cc != "") {
  52. $TO = array_merge($TO, explode(",", $this->strip_comment($cc)));
  53. }
  54. if ($bcc != "") {
  55. $TO = array_merge($TO, explode(",", $this->strip_comment($bcc)));
  56. }
  57. $sent = true;
  58. foreach ($TO as $rcpt_to) {
  59. $rcpt_to = $this->get_address($rcpt_to);
  60. if (!$this->smtp_sockopen($rcpt_to)) {
  61. $this->log_write("Error: Cannot send email to " . $rcpt_to . " ");
  62. $sent = false;
  63. continue;
  64. }
  65. if ($this->smtp_send($this->host_name, $mail_from, $rcpt_to, $header, $body)) {
  66. $this->log_write("E-mail has been sent to <" . $rcpt_to . ">; ");
  67. } else {
  68. $this->log_write("Error: Cannot send email to <" . $rcpt_to . ">; ");
  69. $sent = false;
  70. }
  71. fclose($this->sock);
  72. $this->log_write("Disconnected from remote host ");
  73. }
  74. return $sent;
  75. }

  76. /* Private Functions */

  77. function smtp_send($helo, $from, $to, $header, $body = "")
  78. {
  79. if (!$this->smtp_putcmd("HELO", $helo)) {
  80. return $this->smtp_error("sending HELO command");
  81. }
  82. // auth
  83. if ($this->auth) {
  84. if (!$this->smtp_putcmd("AUTH LOGIN", base64_encode($this->user))) {
  85. return $this->smtp_error("sending HELO command");
  86. }
  87. if (!$this->smtp_putcmd("", base64_encode($this->pass))) {
  88. return $this->smtp_error("sending HELO command");
  89. }
  90. }
  91. if (!$this->smtp_putcmd("MAIL", "FROM:<" . $from . ">;")) {
  92. return $this->smtp_error("sending MAIL FROM command");
  93. }
  94. if (!$this->smtp_putcmd("RCPT", "TO:<" . $to . ">;")) {
  95. return $this->smtp_error("sending RCPT TO command");
  96. }
  97. if (!$this->smtp_putcmd("DATA")) {
  98. return $this->smtp_error("sending DATA command");
  99. }
  100. if (!$this->smtp_message($header, $body)) {
  101. return $this->smtp_error("sending message");
  102. }
  103. if (!$this->smtp_eom()) {
  104. return $this->smtp_error("sending ;;.;; [EOM]");
  105. }
  106. if (!$this->smtp_putcmd("QUIT")) {
  107. return $this->smtp_error("sending QUIT command");
  108. }
  109. return true;
  110. }
  111. function smtp_sockopen($address)
  112. {
  113. if ($this->relay_host == "") {
  114. return $this->smtp_sockopen_mx($address);
  115. } else {
  116. return $this->smtp_sockopen_relay();
  117. }
  118. }
  119. function smtp_sockopen_relay()
  120. {
  121. $this->log_write("Trying to " . $this->relay_host . ":" . $this->smtp_port . " ");
  122. $this->sock = @fsockopen($this->relay_host, $this->smtp_port, $errno, $errstr, $this->time_out);
  123. if (!($this->sock && $this->smtp_ok())) {
  124. $this->log_write("Error: Cannot connenct to relay host " . $this->relay_host . " ");
  125. $this->log_write("Error: " . $errstr . " (" . $errno . ") ");
  126. return false;
  127. }
  128. $this->log_write("Connected to relay host " . $this->relay_host . " ");
  129. return true;;
  130. }
  131. function smtp_sockopen_mx($address)
  132. {
  133. $domain = ereg_replace("^.+@([^@]+)$", "1", $address);
  134. if (!@getmxrr($domain, $MXHOSTS)) {
  135. $this->log_write("Error: Cannot resolve MX "" . $domain . "" ");
  136. return false;
  137. }
  138. foreach ($MXHOSTS as $host) {
  139. $this->log_write("Trying to " . $host . ":" . $this->smtp_port . " ");
  140. $this->sock = @fsockopen($host, $this->smtp_port, $errno, $errstr, $this->time_out);
  141. if (!($this->sock && $this->smtp_ok())) {
  142. $this->log_write("Warning: Cannot connect to mx host " . $host . " ");
  143. $this->log_write("Error: " . $errstr . " (" . $errno . ") ");
  144. continue;
  145. }
  146. $this->log_write("Connected to mx host " . $host . " ");
  147. return true;
  148. }
  149. $this->log_write("Error: Cannot connect to any mx hosts (" . implode(", ", $MXHOSTS) . ") ");
  150. return false;
  151. }
  152. function smtp_message($header, $body)
  153. {
  154. fputs($this->sock, $header . " " . $body);
  155. $this->smtp_debug(">; " . str_replace(" ", " " . ">; ", $header . " >; " . $body . " >; "));
  156. return true;
  157. }
  158. function smtp_eom()
  159. {
  160. fputs($this->sock, " . ");
  161. $this->smtp_debug(". [EOM] ");
  162. return $this->smtp_ok();
  163. }
  164. function smtp_ok()
  165. {
  166. $response = str_replace(" ", "", fgets($this->sock, 512));
  167. $this->smtp_debug($response . " ");
  168. if (!ereg("^[23]", $response)) {
  169. fputs($this->sock, "QUIT ");
  170. fgets($this->sock, 512);
  171. $this->log_write("Error: Remote host returned "" . $response . "" ");
  172. return false;
  173. }
  174. return true;
  175. }
  176. function smtp_putcmd($cmd, $arg = "")
  177. {
  178. if ($arg != "") {
  179. if ($cmd == "") $cmd = $arg;
  180. else $cmd = $cmd . " " . $arg;
  181. }
  182. fputs($this->sock, $cmd . " ");
  183. $this->smtp_debug(">; " . $cmd . " ");
  184. return $this->smtp_ok();
  185. }
  186. function smtp_error($string)
  187. {
  188. $this->log_write("Error: Error occurred while " . $string . ". ");
  189. return false;
  190. }
  191. function log_write($message)
  192. {
  193. $this->smtp_debug($message);
  194. if ($this->log_file == "") {
  195. return true;
  196. }
  197. $message = date("M d H:i:s ") . get_current_user() . "[" . getmypid() . "]: " . $message;
  198. if (!@file_exists($this->log_file) || !($fp = @fopen($this->log_file, "a"))) {
  199. $this->smtp_debug("Warning: Cannot open log file "" . $this->log_file . "" ");
  200. return false;;
  201. }
  202. flock($fp, LOCK_EX);
  203. fputs($fp, $message);
  204. fclose($fp);
  205. return true;
  206. }
  207. function strip_comment($address)
  208. {
  209. $comment = "([^()]*)";
  210. while (ereg($comment, $address)) {
  211. $address = ereg_replace($comment, "", $address);
  212. }
  213. return $address;
  214. }
  215. function get_address($address)
  216. {
  217. $address = ereg_replace("([ ])+", "", $address);
  218. $address = ereg_replace("^.*<(.+)>;.*$", "1", $address);
  219. return $address;
  220. }
  221. function smtp_debug($message)
  222. {
  223. if ($this->debug) {
  224. echo $message . ";";
  225. }
  226. }
  227. }
  228. ?>

复制代码


Statement：
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Previous article：Simple example of php reading innocent ip databaseNext article：Simple example of php reading innocent ip database

Related articles

See more