php实现在站点里面添加邮件发送的功能

下面夏日博客来讲下如何在站点里面添加一个邮件发送的功能。
首先需要下载一个smtp 的 php 邮件发送类，代码如下:

<?php
class smtp
{
 /* Public Variables */
 public $smtp_port;
 public $time_out;
 public $host_name;
 public $log_file;
 public $relay_host;
 public $debug;
 public $auth;
 public $user;
 public $pass;

 /* Private Variables */
 private $sock;

 /* Constractor */
 function smtp($relay_host = "", $smtp_port = 25,$auth = false,$user,$pass)
 {
  $this->debug = FALSE;
  $this->smtp_port = $smtp_port;
  $this->relay_host = $relay_host;
  $this->time_out = 30; //is used in fsockopen()
  #
  $this->auth = $auth;//auth
  $this->user = $user;
  $this->pass = $pass;
  #
  $this->host_name = "localhost"; //is used in HELO command
  $this->log_file ="";

  $this->sock = FALSE;
 }

 /* Main Function */
 function sendmail($to, $from, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = "")
 {
  $mail_from = $this->get_address($this->strip_comment($from));
  $body = preg_replace("/(^|(\r\n))(\\.)/", "\\1.\\3", $body);
  $header .= "MIME-Version:1.0\r\n";
  if($mailtype=="HTML"){
   $header .= "Content-Type:text/html\r\n";
  }
   $header .= "To: ".$to."\r\n";
  if ($cc != "") {
   $header .= "Cc: ".$cc."\r\n";
  }
  $header .= "From: $from<".$from.">\r\n";
  $header .= "Subject: ".$subject."\r\n";
  $header .= $additional_headers;
  $header .= "Date: ".date("r")."\r\n";
  $header .= "X-Mailer:By Redhat (PHP/".phpversion().")\r\n";
  list($msec, $sec) = explode(" ", microtime());
  $header .= "Message-ID: <".date("YmdHis", $sec).".".($msec*1000000).".".$mail_from.">\r\n";
  $TO = explode(",", $this->strip_comment($to));

  if ($cc != "") {
  $TO = array_merge($TO, explode(",", $this->strip_comment($cc)));
  }

  if ($bcc != "") {
  $TO = array_merge($TO, explode(",", $this->strip_comment($bcc)));
  }

  $sent = TRUE;
  foreach ($TO as $rcpt_to) {
   $rcpt_to = $this->get_address($rcpt_to);
   if (!$this->smtp_sockopen($rcpt_to)) {
    $this->log_write("Error: Cannot send email to ".$rcpt_to."\n");
    $sent = FALSE;
    continue;
   }
   if ($this->smtp_send($this->host_name, $mail_from, $rcpt_to, $header, $body)) {
    $this->log_write("E-mail has been sent to <".$rcpt_to.">\n");
   } else {
    $this->log_write("Error: Cannot send email to <".$rcpt_to.">\n");
    $sent = FALSE;
   }
   fclose($this->sock);
   $this->log_write("Disconnected from remote host\n");
  }
  echo "<br>";
  //echo $header;
  return $sent;
 }

 /* Private Functions */

 function smtp_send($helo, $from, $to, $header, $body = "")
 {
  if (!$this->smtp_putcmd("HELO", $helo)) {
   return $this->smtp_error("sending HELO command");
  }
  #auth
  if($this->auth){
   if (!$this->smtp_putcmd("AUTH LOGIN", base64_encode($this->user))) {
    return $this->smtp_error("sending HELO command");
   }
   if (!$this->smtp_putcmd("", base64_encode($this->pass))) {
    return $this->smtp_error("sending HELO command");
   }
  }
  #
  if (!$this->smtp_putcmd("MAIL", "FROM:<".$from.">")) {
   return $this->smtp_error("sending MAIL FROM command");
  }

  if (!$this->smtp_putcmd("RCPT", "TO:<".$to.">")) {
   return $this->smtp_error("sending RCPT TO command");
  }

  if (!$this->smtp_putcmd("DATA")) {
   return $this->smtp_error("sending DATA command");
  }

  if (!$this->smtp_message($header, $body)) {
   return $this->smtp_error("sending message");
  }

  if (!$this->smtp_eom()) {
   return $this->smtp_error("sending <CR><LF>.<CR><LF> [EOM]");
  }

  if (!$this->smtp_putcmd("QUIT")) {
   return $this->smtp_error("sending QUIT command");
  }

  return TRUE;
 }

 function smtp_sockopen($address)
 {
  if ($this->relay_host == "") {
   return $this->smtp_sockopen_mx($address);
  } else {
   return $this->smtp_sockopen_relay();
  }
 }

 function smtp_sockopen_relay()
 {
  $this->log_write("Trying to ".$this->relay_host.":".$this->smtp_port."\n");
  $this->sock = @fsockopen($this->relay_host, $this->smtp_port, $errno, $errstr, $this->time_out);
  if (!($this->sock && $this->smtp_ok())) {
   $this->log_write("Error: Cannot connenct to relay host ".$this->relay_host."\n");
   $this->log_write("Error: ".$errstr." (".$errno.")\n");
   return FALSE;
  }
  $this->log_write("Connected to relay host ".$this->relay_host."\n");
  return TRUE;;
 }

 function smtp_sockopen_mx($address)
 {
  $domain = preg_replace("/^.+@([^@]+)$/", "\\1", $address);
  if (!@getmxrr($domain, $MXHOSTS)) {
   $this->log_write("Error: Cannot resolve MX \"".$domain."\"\n");
   return FALSE;
  }
  foreach ($MXHOSTS as $host) {
   $this->log_write("Trying to ".$host.":".$this->smtp_port."\n");
   $this->sock = @fsockopen($host, $this->smtp_port, $errno, $errstr, $this->time_out);
   if (!($this->sock && $this->smtp_ok())) {
    $this->log_write("Warning: Cannot connect to mx host ".$host."\n");
    $this->log_write("Error: ".$errstr." (".$errno.")\n");
    continue;
   }
   $this->log_write("Connected to mx host ".$host."\n");
   return TRUE;
  }
  $this->log_write("Error: Cannot connect to any mx hosts (".implode(", ", $MXHOSTS).")\n");
  return FALSE;
 }

 function smtp_message($header, $body)
 {
  fputs($this->sock, $header."\r\n".$body);
  $this->smtp_debug("> ".str_replace("\r\n", "\n"."> ", $header."\n> ".$body."\n> "));

  return TRUE;
 }

 function smtp_eom()
 {
  fputs($this->sock, "\r\n.\r\n");
  $this->smtp_debug(". [EOM]\n");

  return $this->smtp_ok();
 }

 function smtp_ok()
 {
  $response = str_replace("\r\n", "", fgets($this->sock, 512));
  $this->smtp_debug($response."\n");

  if (!preg_match("/^[23]/", $response)) {
   fputs($this->sock, "QUIT\r\n");
   fgets($this->sock, 512);
   $this->log_write("Error: Remote host returned \"".$response."\"\n");
   return FALSE;
  }
  return TRUE;
 }

 function smtp_putcmd($cmd, $arg = "")
 {
  if ($arg != "") {
   if($cmd=="") $cmd = $arg;
   else $cmd = $cmd." ".$arg;
  }

  fputs($this->sock, $cmd."\r\n");
  $this->smtp_debug("> ".$cmd."\n");

  return $this->smtp_ok();
 }

 function smtp_error($string)
 {
  $this->log_write("Error: Error occurred while ".$string.".\n");
  return FALSE;
 }

 function log_write($message)
 {
  $this->smtp_debug($message);

  if ($this->log_file == "") {
   return TRUE;
  }

  $message = date("M d H:i:s ").get_current_user()."[".getmypid()."]: ".$message;
  if (!@file_exists($this->log_file) || !($fp = @fopen($this->log_file, "a"))) {
   $this->smtp_debug("Warning: Cannot open log file \"".$this->log_file."\"\n");
   return FALSE;
  }
  flock($fp, LOCK_EX);
  fputs($fp, $message);
  fclose($fp);

  return TRUE;
 }

 function strip_comment($address)
 {
  $comment = "/\\([^()]*\\)/";
  while (preg_match($comment, $address)) {
   $address = preg_replace($comment, "", $address);
  }

  return $address;
 }

 function get_address($address)
 {
  $address = preg_replace("/([ \t\r\n])+/", "", $address);
  $address = preg_replace("/^.*<(.+)>.*$/", "\\1", $address);

  return $address;
 }

 function smtp_debug($message)
 {
  if ($this->debug) {
   echo $message."<br>";
  }
 }

function get_attach_type($image_tag) { //

 $filedata = array();

 $img_file_con=fopen($image_tag,"r");
 unset($image_data);
 while ($tem_buffer=AddSlashes(fread($img_file_con,filesize($image_tag))))
 $image_data.=$tem_buffer;
 fclose($img_file_con);

 $filedata['context'] = $image_data;
 $filedata['filename']= basename($image_tag);
 $extension=substr($image_tag,strrpos($image_tag,"."),strlen($image_tag)-strrpos($image_tag,"."));
 switch($extension){
  case ".gif":
   $filedata['type'] = "image/gif";
   break;
  case ".gz":
   $filedata['type'] = "application/x-gzip";
   break;
  case ".htm":
   $filedata['type'] = "text/html";
   break;
  case ".html":
   $filedata['type'] = "text/html";
   break;
  case ".jpg":
   $filedata['type'] = "image/jpeg";
   break;
  case ".tar":
   $filedata['type'] = "application/x-tar";
   break;
  case ".txt":
   $filedata['type'] = "text/plain";
   break;
  case ".zip":
   $filedata['type'] = "application/zip";
   break;
  default:
   $filedata['type'] = "application/octet-stream";
   break;
 }
 return $filedata;
 }

} // end class
?>

这类的邮件发送类网上有许多，可以挑一款自己喜欢的就行，将以上的代码保存为 ZC_Email.class.php 文件，然后在使用的时候直接 include_once("ZC_Email.class.php") 就可以了，代码如下:

<?php
include_once("ZC_Email.class.php");
?>

这是将邮件的发送类已经嵌入到页面中了，下一步就要在页面进行内容的发送了，我这里的系统是用户购买成功后进行发送，实例代码如下:

//空间购买成功发送邮件
  $smtpserver = "smtp.163.com";//SMTP服务器
  $smtpserverport =25;//SMTP服务器端口
  $smtpusermail = "[e-mail]";//SMTP服务器的用户邮箱
  $smtpemailto = "[e-mail]";//发送给谁
  $smtpuser = "[e-mail]";//SMTP服务器的用户帐号
  $smtppass = "xiariboke";//SMTP服务器的用户密码
  $mailsubject = "精品门业网香港空间购买";//邮件主题
  $mailbody = "成功购买香港空间 $size M空间，购买域名为：$domain 购买时间为:".format_date(time(),2)." 到期时间为: $lasttime ".format_date(time(),5);//邮件内容
  $mailtype = "TXT";//邮件格式（HTML/TXT）,TXT为文本邮件
  ##########################################
  $smtp = new smtp($smtpserver,$smtpserverport,true,$smtpuser,$smtppass);//这里面的一个true是表示使用身份验证,否则不使用身份验证.
  $smtp->debug = false;//是否显示发送的调试信息
  $smtp->sendmail($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype);
  //邮件发送结束

  showmsg('购买成功！','ZC_Link_List.php?sort=2');

其中 SMTP 服务器的用户邮箱和密码自己要设置好，这是发给指定的一个邮箱，当然可以自定义改成自己的，这里面的变量都是我站点内使用的，如果不需要可以自己稍微修改一下，这里不多讲了。
希望本文所述对大家学习php程序设计有所帮助。