PHP会员找回密码功能的简单实现
编程学习 2021-07-05 09:10www.dzhlxh.cn编程入门
狼蚁网站SEO优化长沙网络推广就为大家带来一篇PHP会员找回密码功能的简单实现。长沙网络推广觉得挺不错的，现在就分享给大家，也给大家做个参考。一起跟随长沙网络推广过来看看吧
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：
代码如下
$(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网上下载了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.jb51.net - 找回密码";
$emailbody = "亲爱的".$email."：<br/>您在".$time."提交了找回密码请求。请点击狼蚁网站SEO优化的链接重置密码
（按钮24小时内有效）。<br/><a href='".$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(www.jb51.net): $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，这里就不介绍了大家可以百本站找相关的数据库连接mysql类哦
以上这篇PHP会员找回密码功能的简单实现就是长沙网络推广分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持狼蚁SEO。