thinkphp3.2.3使用smtp发送email

本程序使用thinkphp3.2.3版本使用smtp发送邮件，测试发送方邮箱地址为163邮箱地址，接收邮箱可以是任意邮箱，但发送方邮箱地址不能是qq邮箱，若使用QQ email发送邮件这篇文章：thinkphp3.2.3使用PHPMailer发送QQ邮件，以下为普通发邮件使用smtp代码。

PS:在程序运行之前，你得开启发送方邮件的smtp服务功能。

引用的邮箱类代码为：Smtp.class.php，保存在扩展类目录中Org/Util下，代码如下：

namespace Org\Util;

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 __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 */

    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");
        }
        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.[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;
        }
    }
}

模板页面就展示代码了，只需要制作一个单纯的提交表单即可；

处理发送邮件的控制器为MessageController.class.php，代码如下：

namespace Home\Controller;
use Org\Util\Smtp;

class MessageController extends Controller{
    public function index(){
        if(IS_POST){
            $smtpserver = "smtp.163.com";    //SMTP服务器
            $smtpserverport =25; //SMTP服务器端口
            $smtpusermail = "发送方邮箱地址";  //SMTP服务器的用户邮箱
            $smtpemailto ='接收方邮箱地址';    //发送给谁
            $smtpuser = "发送方邮箱地址";  //SMTP服务器的用户帐号，注：部分邮箱只需@前面的用户名
            $smtppass = "密码";   //SMTP服务器的用户密码
            $mailtype = "HTML";  //邮件格式（HTML/TXT）,TXT为文本邮件
       
            $data=I('post.');
            $emailtitle='网站留言-'.$data['name'];
            $emailcontent="姓名：{$data['name']} 
电话： {$data['mobile']} 
邮箱： {$data['email']} 
 留言内容: {$data['message']}";
            
            $smtp = new Smtp($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
            $state = $smtp->sendmail($smtpemailto, $smtpusermail,$emailtitle,$emailcontent,$mailtype);
            if($state){
                $this->success('留言成功');
            } else {
                $this->error('留言失败');
            }
        } else {
            $this->display();
        }
    }
}