一个邮箱类（网上找的），重新做了一些备注和注释
<?php class smtp { /* Public Variables */ public $smtp_port; //端口 public $time_out; //超时等待时间 public $host_name; //发件人的邮件服务器地址 public $log_file; //日志文件 public $relay_host; //SMTP服务器 public $debug; //是否开启debug true开启 public $auth; //是否使用身份验证 true是 public $user; //邮件用户名 public $pass; //邮件密码 /* Private Variables */ private $sock; //连接网络请求内容 /* Constractor */ function smtp($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() 打开一个网络请求 # $this->auth = $auth;//auth $this->user = $user; $this->pass = $pass; # $this->host_name = "localhost"; //is used in HELO command 用于Helo命令 $this->log_file = ""; $this->sock = FALSE; } /* Main Function */ /** * 发送邮箱 * @param string $to 收件人 * @param string $from 发件人 * @param string $from_title 发件人名称显示 * @param string $subject 邮件主题 * @param string $body 邮件内容 * @param string $mailtype 邮件格式（HTML/TXT）,TXT为文本邮件 * @param string $cc 抄送地址. 多个地址使用','分隔 * @param string $bcc 密送地址. 多个地址使用','分隔 * @param string $additional_headers 附加标题 */ function sendmail($to, $from, $from_title,$subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = "") { $mail_from = $this->get_address($this->strip_comment($from)); $body = preg_replace("/(^|( ))(\.)/", "\1.\3", $body); $header = "MIME-Version:1.0 "; if ($mailtype == "HTML") { $header .= "Content-Type:text/html "; } $header .= "To: " . $to . " "; //抄送地址. 多个地址使用';'分隔 if ($cc != "") { $header .= "Cc: " . $cc . " "; } $header .= "From: $from_title<" . $from . "> "; $header .= "Subject: " . $subject . " "; $header .= $additional_headers; $header .= "Date: " . date("r") . " "; $header .= "X-Mailer:By Redhat (PHP/" . phpversion() . ") "; //list 把数组中的值赋给一些变量： list($msec, $sec) = explode(" ", microtime()); $header .= "Message-ID: <" . date("YmdHis", $sec) . "." . ($msec * 1000000) . "." . $mail_from . "> "; $TO = explode(",", $this->strip_comment($to)); if ($cc != "") { $TO = array_merge($TO, explode(",", $this->strip_comment($cc))); } //密送地址. 多个地址使用';'分隔 if ($bcc != "") { $TO = array_merge($TO, explode(",", $this->strip_comment($bcc))); } $sent = TRUE; //$TO 收件人 抄送 密送 一维数组 foreach ($TO as $rcpt_to) { //$rcpt 收件人 $rcpt_to = $this->get_address($rcpt_to); if (!$this->smtp_sockopen($rcpt_to)) { $this->log_write("Error: Cannot send email to " . $rcpt_to . " "); $sent = FALSE; continue; } // var_dump($this->smtp_send($this->host_name, $mail_from, $rcpt_to, $header, $body));die; if ($this->smtp_send($this->host_name, $mail_from, $rcpt_to, $header, $body)) { $this->log_write("E-mail has been sent to <" . $rcpt_to . "> "); } else { $this->log_write("Error: Cannot send email to <" . $rcpt_to . "> "); $sent = FALSE; } fclose($this->sock); $this->log_write("Disconnected from remote host "); } // echo "<br>"; // echo $header; return $sent; } /* Private Functions */ /** * 执行发送 * @param string $helo 服务器地址 * @param string $from 发件人 * @param string $to 收件人 * @param string $header header头信息 * @param string $body 邮件内容 */ function smtp_send($helo, $from, $to, $header, $body = "") { // HELO命令提供域名信息 //执行HELO命令 拼接 提供域名信息 if (!$this->smtp_putcmd("HELO", $helo)) { return $this->smtp_error("sending HELO command"); } #auth if ($this->auth) { // print_r($this->smtp_putcmd("AUTH LOGIN", base64_encode($this->user)));die; 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 . " "); //打开一个网络连接或者一个Unix套接字连接 参数 主机地址 端口 错误信息 错误信息以字符串返回 连接时限 $this->sock = @fsockopen($this->relay_host, $this->smtp_port, $errno, $errstr, $this->time_out); //连接失败 if (!($this->sock && $this->smtp_ok())) { $this->log_write("Error: Cannot connenct to relay host " . $this->relay_host . " "); $this->log_write("Error: " . $errstr . " (" . $errno . ") "); return FALSE; } $this->log_write("Connected to relay host " . $this->relay_host . " "); return TRUE; } function smtp_sockopen_mx($address) { //取替换截取 163.com $domain = preg_replace("/^.+@([^@]+)$/", "\1", $address); //获取互联网主机名对应的 MX DNS记录 if (!@getmxrr($domain, $MXHOSTS)) { $this->log_write("Error: Cannot resolve MX "" . $domain . "" "); return FALSE; } foreach ($MXHOSTS as $host) { $this->log_write("Trying to " . $host . ":" . $this->smtp_port . " "); $this->sock = @fsockopen($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 . " "); $this->log_write("Error: " . $errstr . " (" . $errno . ") "); continue; } $this->log_write("Connected to mx host " . $host . " "); return TRUE; } $this->log_write("Error: Cannot connect to any mx hosts (" . implode(", ", $MXHOSTS) . ") "); return FALSE; } function smtp_message($header, $body) { fputs($this->sock, $header . " " . $body); $this->smtp_debug("> " . str_replace(" ", " " . "> ", $header . " > " . $body . " > ")); return TRUE; } function smtp_eom() { fputs($this->sock, " . "); $this->smtp_debug(". [EOM] "); return $this->smtp_ok(); } /** * 是否发送成功 * */ function smtp_ok() { //从文件中取出一行 $response = str_replace(" ", "", fgets($this->sock, 512)); $this->smtp_debug($response . " "); // print_r($response);die; if (!preg_match("/^[23]/", $response)) { //写入文件 fputs($this->sock, "QUIT "); fgets($this->sock, 512); $this->log_write("Error: Remote host returned "" . $response . "" "); return FALSE; } return TRUE; } /** * 拼接 信息 * @param string $cmd HELO/AUTH等 * @param string $arg */ function smtp_putcmd($cmd, $arg = "") { if ($arg != "") { if ($cmd == "") $cmd = $arg; else $cmd = $cmd . " " . $arg; } // print_r($this->sock);die; fputs($this->sock, $cmd . " "); $this->smtp_debug("> " . $cmd . " "); return $this->smtp_ok(); } /** * 错误信息 */ function smtp_error($string) { $this->log_write("Error: Error occurred while " . $string . ". "); return FALSE; // return "Error: Error occurred while " . $string . ". "; } /** * 写入日志 * @param string $message 写入日志信息 */ function log_write($message) { $this->smtp_debug($message); if ($this->log_file == "") { return TRUE; } //get_current_user取当前 PHP 脚本所有者名称 getmypid 获取 PHP 进程的 ID $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 "" . $this->log_file . "" "); return FALSE; } // 函数锁定或释放文件。 flock($fp, LOCK_EX); fputs($fp, $message); fclose($fp); return TRUE; } function strip_comment($address) { $comment = "/\([^()]*\)/"; //正则匹配 while (preg_match($comment, $address)) { $address = preg_replace($comment, "", $address); } return $address; } function get_address($address) { //正则搜索替换 $address = preg_replace("/([ ])+/", "", $address); $address = preg_replace("/^.*<(.+)>.*$/", "\1", $address); return $address; } /** * 输出错误信息 * @param string $message 错误信息 */ function smtp_debug($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 ?>
发送邮箱：
/**
* 发送邮箱
* @param string $smtpemailto 要发送给谁
*/
function email($smtpemailto){
require_once('smtp.class.php');
$smtpserver = "smtp.qq.com";//发送者的邮箱类型服务 这里以QQ邮箱为例
$smtpserverport = 25;//端口号
$smtpusermail = "";//SMTP服务器的用户邮箱
$smtpuser = "";//SMTP服务器的用户帐号
$smtppass = "";//SMTP服务器的用户密码 不是自己登陆密码
$from_title = '';
$mailsubject = "";//邮件主题
$mailbody = "";//邮件内容
$mailtype = "HTML";//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 = true;//是否显示发送的调试信息
$ok = $smtp->sendmail($smtpemailto, $smtpusermail, $from_title ,$mailsubject, $mailbody, $mailtype, $cc = "", $bcc = "", $additional_headers = "");
}
以上就是这次的全部内容！