PHP用户注册邮箱验证激活帐号示例

现在大部份网站都需要用户利用邮箱注册，然后再发帐号激活邮件到用户注册邮箱，用户点击链接就可以激活帐号了，下面我来介绍一下具体方法。

功能需求

PHP程序开发，用户在网站注册，需要用户通过邮件链接激活帐号，当用户注册后（用户信息写入数据库），没有登录邮箱激活帐号，规定24小时后自动删除没有激活帐号的用户信息，实现激活链接过期后，用户还可以使用该信息在网站注册

准备数据表

用户信息表中字段Email很重要，它可以用来验证用户、找回密码、甚至对网站方来说可以用来收集用户信息进行Email营销，以下是用户信息表t_user的表结构：

代码如下

复制代码

CREATE TABLE IF NOT EXISTS `t_user` (   `id` int(11) NOT NULL AUTO_INCREMENT,   `username` varchar(30) NOT NULL COMMENT '用户名',   `password` varchar(32) NOT NULL COMMENT '密码',   `email` varchar(30) NOT NULL COMMENT '邮箱',   `token` varchar(50) NOT NULL COMMENT '帐号激活码',   `token_exptime` int(10) NOT NULL COMMENT '激活码有效期',   `status` tinyint(1) NOT NULL DEFAULT '0' COMMENT '状态,0-未激活,1-已激活',   `regtime` int(10) NOT NULL COMMENT '注册时间',   PRIMARY KEY (`id`) ) ENGINE=MyISAM  DEFAULT CHARSET=utf8;

HTML

在页面中放置一个注册表单，用户可以输入注册信息，包括用户名、密码和邮箱。

代码如下	复制代码
用户名：     密 码：     E-mail：

对于用户的输入要进行必要的前端验证，关于表单验证功能，建议您参考本站文章：实例讲解表单验证插件Validation的应用，本文对前端验证代码略过，另外其实页面中还应该有个要求用户重复输入密码的输入框，一时偷懒就此略过。
register.php

用户将注册信息提交到register.php进行处理。register.php需要完成写入数据和发送邮件两大功能。

首先包含必要的两个文件，connect.php和smtp.class.php，这两个文件在外面提供的下载包里有，欢迎下载。

代码如下	复制代码
include_once("connect.php");//连接数据库 include_once("smtp.class.php");//邮件发送类 然后我们要过滤用户提交的信息，并验证用户名是否存在（前端也可以验证）。 $username = stripslashes(trim($_POST['username'])); $query = mysql_query("select id from t_user where username='$username'"); $num = mysql_num_rows($query); if($num==1){     echo '用户名已存在，请换个其他的用户名';     exit; }

接着我们将用户密码加密，构造激活识别码：

代码如下

复制代码

$password = md5(trim($_POST['password'])); //加密密码 $email = trim($_POST['email']); //邮箱 $regtime = time();   $token = md5($username.$password.$regtime); //创建用于激活识别码 $token_exptime = time()+60*60*24;//过期时间为24小时后   $sql = "insert into `t_user` (`username`,`password`,`email`,`token`,`token_exptime`,`regtime`)  values ('$username','$password','$email','$token','$token_exptime','$regtime')";   mysql_query($sql);

上述代码中，$token即构造好的激活识别码，它是由用户名、密码和当前时间组成并md5加密得来的。$token_exptime用于设置激活链接URL的过期时间，用户在这个时间段内可以激活帐号，本例设置的是24小时内激活有效。最后将这些字段插入到数据表t_user中。

当数据插入成功后，调用邮件发送类将激活信息发送给用户注册的邮箱，注意将构造好的激活识别码组成一个完整的URL作为用户点击时的激活链接，以下是详细代码：

代码如下

复制代码

if(mysql_insert_id()){     $smtpserver = ""; //SMTP服务器，如：smtp.163.com     $smtpserverport = 25; //SMTP服务器端口，一般为25     $smtpusermail = ""; //SMTP服务器的用户邮箱，如xxx@163.com     $smtpuser = ""; //SMTP服务器的用户帐号xxx@163.com     $smtppass = ""; //SMTP服务器的用户密码     $smtp = new Smtp($smtpserver, $smtpserverport, true, $smtpuser, $smtppass); //实例化邮件类     $emailtype = "HTML"; //信件类型，文本:text；网页：HTML     $smtpemailto = $email; //接收邮件方，本例为注册用户的Email     $smtpemailfrom = $smtpusermail; //发送邮件方，如xxx@163.com     $emailsubject = "用户帐号激活";//邮件标题     //邮件主体内容     $emailbody = "亲爱的".$username."： 感谢您在我站注册了新帐号。 请点击链接激活您的帐号。     '_blank'>/demo/register/active.php?verify=".$token."     如果以上链接无法点击，请将它复制到你的浏览器地址栏中进入访问，该链接24小时内有效。";     //发送邮件     $rs = $smtp->sendmail($smtpemailto, $smtpemailfrom, $emailsubject, $emailbody, $emailtype);     if($rs==1){         $msg = '恭喜您，注册成功！ 请登录到您的邮箱及时激活您的帐号！';         }else{         $msg = $rs;         } } echo $msg;

还有一个相当好用且强大的邮件发送类分享个大家：使用PHPMailer发送带附件并支持HTML内容的邮件，直接可以用哦。
active.php

如果不出意外，您注册帐号时填写的Email将收到一封helloweba发送的邮件，这个时候您直接点击激活链接，交由active.php处理。

active.php接收提交的链接信息，获取参数verify的值，即激活识别码。将它与数据表中的用户信息进行查询对比，如果有相应的数据集，判断是否过期，如果在有效期内则将对应的用户表中字段status设置1，即已激活，这样就完成了激活功能。

代码如下

复制代码

include_once("connect.php");//连接数据库   $verify = stripslashes(trim($_GET['verify'])); $nowtime = time();   $query = mysql_query("select id,token_exptime from t_user where status='0' and  `token`='$verify'"); $row = mysql_fetch_array($query); if($row){     if($nowtime>$row['token_exptime']){ //24hour         $msg = '您的激活有效期已过，请登录您的帐号重新发送激活邮件.';     }else{         mysql_query("update t_user set status=1 where id=".$row['id']);         if(mysql_affected_rows($link)!=1) die(0);         $msg = '激活成功！';     } }else{     $msg = 'error.';     } echo $msg;

激活成功后，发现token字段并没有用处了，您可以清空。接下来我们会讲解用户找回密码的功能，也要用到邮箱验证，敬请关注。

最后附上邮箱smtp.class.php发送类

代码如下

复制代码

class Smtp{     /* Public Variables */  var $smtp_port;  var $time_out;  var $host_name;  var $log_file;  var $relay_host;  var $debug;  var $auth;  var $user;  var $pass;  /* Private Variables */  var $sock;  /* Constractor */  function smtp($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 = ereg_replace("(^|(rn))(.)", "1.3", $body);   $header .= "MIME-Version:1.0rn";   if ($mailtype == "HTML") {    $header .= "Content-Type:text/htmlrn";   }   $header .= "To: " . $to . "rn";   if ($cc != "") {    $header .= "Cc: " . $cc . "rn";   }   $header .= "From: $fromrn";   $header .= "Subject: " . $subject . "rn";   $header .= $additional_headers;   $header .= "Date: " . date("r") . "rn";   $header .= "X-Mailer:By Redhat (PHP/" . phpversion() . ")rn";   list ($msec, $sec) = explode(" ", microtime());   $header .= "Message-ID: rn";   $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 hostn");   }   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) {   $domain = ereg_replace("^.+@([^@]+)$", "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 . "rn" . $body);   $this->smtp_debug("> " . str_replace("rn", "n" . "> ", $header . "n> " . $body . "n> "));   return true;  }  function smtp_eom() {   fputs($this->sock, "rn.rn");   $this->smtp_debug(". [EOM]n");   return $this->smtp_ok();  }  function smtp_ok() {   $response = str_replace("rn", "", fgets($this->sock, 512));   $this->smtp_debug($response . "n");   if (!ereg("^[23]", $response)) {    fputs($this->sock, "QUITrn");    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 . "rn");   $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) {   $comment = "([^()]*)";   while (ereg($comment, $address)) {    $address = ereg_replace($comment, "", $address);   }   return $address;  }  function get_address($address) {   $address = ereg_replace("([ trn])+", "", $address);   $address = ereg_replace("^.*.*$", "1", $address);   return $address;  }  function smtp_debug($message) {   if ($this->debug) {    echo $message . "    ;";   }  } } ?>

connect数据库连接类

代码如下	复制代码
$host="localhost"; $db_user="";//用户名 $db_pass="";//密码 $db_name="demo";//数据库 $timezone="Asia/Shanghai"; $link=mysql_connect($host,$db_user,$db_pass); mysql_select_db($db_name,$link); mysql_query("SET names UTF8"); header("Content-Type: text/html; charset=utf-8"); date_default_timezone_set($timezone); //北京时间 ?>