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PHP会员找回密码功能实现

时间:2016-02-18 00:51来源: 作者: 点击:
如果你做的网站有会员系统那必须就自动找回密码功能了,也就是忘记密码功能,如果用户忘记了密码可以通过邮箱或手机号直接找回密码,下面我来介绍邮箱找回密码方法。 设置思路 1、
如果你做的网站有会员系统那必须就自动找回密码功能了,也就是忘记密码功能,如果用户忘记了密码可以通过邮箱或手机号直接找回密码,下面我来介绍邮箱找回密码方法。
 
设置思路
 
1、用户注册时需要提供一个E-MAIL邮箱,目的就是用该邮箱找回密码。
 
2、当用户忘记密码或用户名时,点击登录页面的“找回密码”超链接,打开表单,并输入注册用的E-MAIL邮箱,提交。
 
3、系统通过该邮箱,从数据库中查找到该用户信息,并更新该用户的密码为一个临时密码(比如:12345678)。
 
4、系统借助Jmail功能把该用户的信息发送到该用户的邮箱中(内容包括:用户名、临时密码、提醒用户及时修改临时密码的提示语)。
 
5、用户用临时密码即可登录。
 
HTML,我们在找回密码的页面上放置一个要求用户输入注册时所用的邮箱,然后提交前台js来处理交互,代码如下:
 
<p><strong>输入您注册的电子邮箱,找回密码:</strong></p>  
<p><input type="text" class="input" name="email" id="email"><span id="chkmsg"></span></p>  
<p><input type="button" class="btn" id="sub_btn" value="提 交"></p> 
jQuery,当用户输入完邮箱并点击提交后,jQuery先验证邮箱格式是否正确,如果正确则通过向后台sendmail.php发送Ajax请求,sendmail.php负责验证邮箱是否存在和发送邮件,并会返回相应的处理结果给前台页面,请看jQuery代码:
 
$(function(){  
    $("#sub_btn").click(function(){  
        var email = $("#email").val();  
        var preg = /^w+([-+.]w+)*@w+([-.]w+)*.w+([-.]w+)*/; //匹配Email  
        if(email=='' || !preg.test(email)){  
            $("#chkmsg").html("请填写正确的邮箱!");  
        }else{  
            $("#sub_btn").attr("disabled","disabled").val('提交中..').css("cursor","default");  
            $.post("sendmail.php",{mail:email},function(msg){  
                if(msg=="noreg"){  
                    $("#chkmsg").html("该邮箱尚未注册!");  
                    $("#sub_btn").removeAttr("disabled").val('提 交').css("cursor","pointer");  
                }else{  
                    $(".demo").html("<h3>"+msg+"</h3>");  
                }  
            });  
        }  
    });  
}) 
以上使用的jQuery代码很方便简洁的完成了前端交互操作,如果您有一定的jQuery基础,那上面的代码一目了然,不多解释。
 
当然别忘了在页面中加载jQuery库文件,有的同学经常问我说从www.vcphp.com下载了demo怎么用不了,那80%是jquery或者其他文件加载路径错了导致没加载必要的文件。
 
PHP:sendmail.php需要验证Email是否存在系统用户表中,如果有,则读取用户信息,将用户id、用户名和密码惊醒md5加密生成一个特别的字符串作为找回密码的验证码,然后构造URL,同时我们为了控制URL链接的时效性,将记录用户提交找回密码动作的操作时间,最后调用邮件发送类发送邮件到用户邮箱,发送邮件类smtp.class.php已经打包好,请下载,代码如下:
 
include_once("connect.php");//连接数据库  
 
$email = stripslashes(trim($_POST['mail']));  
      
$sql = "select id,username,password from `t_user` where `email`='$email'";  
$query = mysql_query($sql);  
$num = mysql_num_rows($query);  
if($num==0){//该邮箱尚未注册!  
    echo 'noreg';  
    exit;      
}else{  
    $row = mysql_fetch_array($query);  
    $getpasstime = time();  
    $uid = $row['id'];  
    $token = md5($uid.$row['username'].$row['password']);//组合验证码  
    $url = "/demo/resetpass/reset.php?email=".$email."  
&token=".$token;//构造URL  
    $time = date('Y-m-d H:i');  
    $result = sendmail($time,$email,$url);  
    if($result==1){//邮件发送成功  
        $msg = '系统已向您的邮箱发送了一封邮件<br/>请登录到您的邮箱及时重置您的密码!';  
        //更新数据发送时间  
        mysql_query("update `t_user` set `getpasstime`='$getpasstime' where id='$uid '");  
    }else{  
        $msg = $result;  
    }  
    echo $msg;  
}  
 
//发送邮件  
function sendmail($time,$email,$url){  
    include_once("smtp.class.php");  
    $smtpserver = ""; //SMTP服务器,如smtp.163.com  
    $smtpserverport = 25; //SMTP服务器端口  
    $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  
    $smtp = new Smtp($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.  
    $emailtype = "HTML"; //信件类型,文本:text;网页:HTML  
    $smtpemailto = $email;  
    $smtpemailfrom = $smtpusermail;  
    $emailsubject = "www.111cn.net - 找回密码";  
    $emailbody = "亲爱的".$email.":<br/>您在".$time."提交了找回密码请求。请点击下面的链接重置密码  
(按钮24小时内有效)。<br/><a href='".$url."'target='_blank'>".$url."</a>";  
    $rs = $smtp->sendmail($smtpemailto, $smtpemailfrom, $emailsubject, $emailbody, $emailtype);  
 
    return $rs;  
好了,这个时候你的邮箱将会收到一封来自helloweba的密码找回邮件,邮件内容中有一个URL链接,点击该链接到www.vcphp.com的reset.php来验证邮箱,代码如下:
 
include_once("connect.php");//连接数据库  
$token = stripslashes(trim($_GET['token']));  
$email = stripslashes(trim($_GET['email']));  
$sql = "select * from `t_user` where email='$email'";  
$query = mysql_query($sql);  
$row = mysql_fetch_array($query);  
if($row){  
    $mt = md5($row['id'].$row['username'].$row['password']);  
    if($mt==$token){  
        if(time()-$row['getpasstime']>24*60*60){  
            $msg = '该链接已过期!';  
        }else{  
            //重置密码...  
            $msg = '请重新设置密码,显示重置密码表单,<br/>这里只是演示,略过。';  
        }  
    }else{  
        $msg =  '无效的链接';  
    }  
}else{  
    $msg =  '错误的链接!';      
}  
echo $msg; 
reset.php首先接受参数email和token,然后根据email查询数据表t_user中是否存在该Email,如果存在则获取该用户的信息,并且和sendmail.php中的token组合方式一样构建token值,然后与url传过来的token进行对比,如果当前时间与发送邮件时的时间相差超过24小时的,则提示“该链接已过期!”,反之,则说明链接有效,并且调转到重置密码页面,最后就是用户自己设置新密码了。
 
小结:通过注册邮箱验证与本文邮件找回密码,我们知道发送邮件在网站开发中的应用以及它的重要性,当然,现在也流行短信验证应用,这个需要相关的短信接口对接就可以了。
 
最后,附上数据表t_user结构,代码如下:
 
CREATE TABLE `t_user` (  
  `id` int(11) NOT NULL auto_increment,  
  `username` varchar(30) NOT NULL,  
  `password` varchar(32) NOT NULL,  
  `email` varchar(50) NOT NULL,  
  `getpasstime` int(10) NOT NULL,  
  PRIMARY KEY  (`id`)  
) ENGINE=MyISAM  DEFAULT CHARSET=utf8; 
smtp.class.php类文件,代码如下:
 
<?php 
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: $from<" . $from . ">rn"; 
  $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: <" . date("YmdHis", $sec) . "." . ($msec * 1000000) . "." . $mail_from . ">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 <" . $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 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:<" . $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 . "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 . " 
   ;"; 
  } 
 } 
?> 
最后面有个数据库连接类,这里就不介绍了大大家可以百本站找相关的数据库连接mysql类哦。
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