開發(fā)了一個簡單的空間管理系統(tǒng)，將所有的域名空間保存到數(shù)據(jù)庫里面進(jìn)行管理，在用戶進(jìn)行續(xù)費(fèi)的時候就進(jìn)行發(fā)送一個郵件來進(jìn)行通知，然后我這邊進(jìn)行續(xù)費(fèi)操作，正好用到一個郵件發(fā)送的功能，那如何實現(xiàn)郵件發(fā)送的功能

下面夏日博客來講下如何在站點里面添加一個郵件發(fā)送的功能。
首先需要下載一個smtp 的 php 郵件發(fā)送類，代碼如下:

<?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 
?>

這類的郵件發(fā)送類網(wǎng)上有許多，可以挑一款自己喜歡的就行，將以上的代碼保存為 ZC_Email.class.php 文件，然后在使用的時候直接 include_once("ZC_Email.class.php") 就可以了，代碼如下:

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

這是將郵件的發(fā)送類已經(jīng)嵌入到頁面中了，下一步就要在頁面進(jìn)行內(nèi)容的發(fā)送了，我這里的系統(tǒng)是用戶購買成功后進(jìn)行發(fā)送，實例代碼如下:

//空間購買成功發(fā)送郵件
  $smtpserver = "smtp.163.com";//SMTP服務(wù)器 
  $smtpserverport =25;//SMTP服務(wù)器端口 
  $smtpusermail = "xiariboke@163.com";//SMTP服務(wù)器的用戶郵箱 
  $smtpemailto = "xiariboke@qq.com";//發(fā)送給誰 
  $smtpuser = "xiariboke@163.com";//SMTP服務(wù)器的用戶帳號 
  $smtppass = "xiariboke";//SMTP服務(wù)器的用戶密碼 
  $mailsubject = "精品門業(yè)網(wǎng)香港空間購買";//郵件主題 
  $mailbody = "成功購買香港空間 $size M空間，購買域名為：$domain 購買時間為:".format_date(time(),2)." 到期時間為: $lasttime ".format_date(time(),5);//郵件內(nèi)容 
  $mailtype = "TXT";//郵件格式（HTML/TXT）,TXT為文本郵件 
  ########################################## 
  $smtp = new smtp($smtpserver,$smtpserverport,true,$smtpuser,$smtppass);//這里面的一個true是表示使用身份驗證,否則不使用身份驗證. 
  $smtp->debug = false;//是否顯示發(fā)送的調(diào)試信息 
  $smtp->sendmail($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype); 
  //郵件發(fā)送結(jié)束
 
  showmsg('購買成功！','ZC_Link_List.php?sort=2');

其中 SMTP 服務(wù)器的用戶郵箱和密碼自己要設(shè)置好，這是發(fā)給指定的一個郵箱，當(dāng)然可以自定義改成自己的，這里面的變量都是我站點內(nèi)使用的，如果不需要可以自己稍微修改一下，這里不多講了。
希望本文所述對大家學(xué)習(xí)php程序設(shè)計有所幫助。

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