使用PHP通过SMTP发送电邮 · php开发笔记

# 方案 * 使用找来的代码，进行一定的改造适配。原本的版本是适配PHP5.0，我这里服务端已经到PHP7.X。 * 维护通用smtp类供应请求使用 * 维护一个响应客户端请求的脚本即可 # 实战 * 部署到业主服务器之前，先配置个人的163邮箱smtp功能做测试 * 业主提供相关smtp服务器信息之后，一次成功 * 优化余地：业主方也提供pop3协议读取邮件，后续应该可以配套邮件读取的响应处理 ~~~php <?php /** * copyright ：http://www.daixiaorui.com * created by YYXOCHEN on 2018.09.27 * 借用他人成熟方案，原始代码为php5，适当改造为适配php7 * ----------------------------------------------------- * 使用范例： * require_once "util/smtp.class.php"; * //******************** 配置信息 ******************************** * $smtpserver = "smtp.163.com";//SMTP服务器 * $smtpserverport =25;//SMTP服务器端口 * $smtpusermail = "XXX@163.com";//SMTP服务器的用户邮箱 * $smtpemailto = $_POST['toemail'];//发送给谁 * $smtpuser = "XXX";//SMTP服务器的用户帐号 * $smtppass = "XXX";//SMTP服务器的用户密码，不是登录密码，是smtp功能开通后的专用密码 * $mailtitle = $_POST['title'];//邮件主题 * $mailcontent = "<h1>".$_POST['content']."</h1>";//邮件内容 * $mailtype = "HTML";//邮件格式（HTML/TXT）,TXT为文本邮件 * //************************ 配置信息 **************************** * $smtp = new smtp($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 * $state = $smtp->sendmail($smtpemailto, $smtpusermail, $mailtitle, $mailcontent, $mailtype); * echo "<div style='width:300px; margin:36px auto;'>"; * if($state==""){ * echo "对不起，邮件发送失败！请检查邮箱填写是否有误。"; * echo "<a href='index.html'>点此返回</a>"; * exit(); * } * echo "恭喜！邮件发送成功！！"; * echo "<a href='index.html'>点此返回</a>"; * echo "</div>"; */ 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 */ public $sock; /* Constractor */ public function __construct($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 = ""; $this->sock = false; } /* Main Function */ public function sendmail($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;charset=utf-8\r\n"; } $header .= "To: " . $to . "\r\n"; if ($cc != "") { $header .= "Cc: " . $cc . "\r\n"; } $header .= "From: $from<" . $from . ">\r\n"; $subject = mb_convert_encoding($subject, 'gbk', 'utf8'); $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"); } return $sent; } /* Private Functions */ public function smtp_send($helo, $from, $to, $header, $body = "") { if (!$this->smtp_putcmd("HELO", $helo)) { return $this->smtp_error("sending HELO command"); } if ($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 $this->smtp_error("sending QUIT command"); } return true; } public function smtp_sockopen($address) { if ($this->relay_host == "") { return $this->smtp_sockopen_mx($address); } else { return $this->smtp_sockopen_relay(); } } public 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 " . $this->relay_host . "\n"); return true; } public function smtp_sockopen_mx($address) { $domain = preg_replace("/^.+@([^@]+)$/i", "$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(", ", $MXHOSTS) . ")\n"); return false; } public function smtp_message($header, $body) { fputs($this->sock, $header . "\r\n" . $body); $this->smtp_debug("> " . str_replace("\r\n", "\n" . "> ", $header . "\n> " . $body . "\n> ")); return true; } public function smtp_eom() { fputs($this->sock, "\r\n.\r\n"); $this->smtp_debug(". [EOM]\n"); return $this->smtp_ok(); } public 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 \"" . $response . "\"\n"); return false; } return true; } public function smtp_putcmd($cmd, $arg = "") { if ($arg != "") { if ($cmd == "") { $cmd = $arg; } else { $cmd = $cmd . " " . $arg; } } fputs($this->sock, $cmd . "\r\n"); $this->smtp_debug("> " . $cmd . "\n"); return $this->smtp_ok(); } public function smtp_error($string) { $this->log_write("Error: Error occurred while " . $string . ".\n"); return false; } public function log_write($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; } public function strip_comment($address) { $comment = "/$[^()]*$/"; while (preg_match($comment, $address)) { $address = ereg_replace($comment, "", $address); } return $address; } public function get_address($address) { $address = preg_replace("/([ \t\r\n])+/", "", $address); $address = preg_replace("/^.*<(.+)>.*$/", "\1", $address); return $address; } public function smtp_debug($message) { if ($this->debug) { echo $message; } } } ?> ~~~