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:
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\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: \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 \n); } else { $this->log_write(error: cannot send email to \n); $sent = false; } fclose($this->sock); $this->log_write(disconnected from remote host\n); } echo
; //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:)) { return $this->smtp_error(sending mail from command); } if (!$this->smtp_putcmd(rcpt, 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 $this->smtp_error(sending . [eom]); } if (!$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 $message.
; } } function get_attach_type($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:

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 = xiariboke@163.com;//smtp服务器的用户邮箱 $smtpemailto = xiariboke@qq.com;//发送给谁 $smtpuser = xiariboke@163.com;//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。