PHP會員找回密碼功能實現執行個體介紹_PHP教程

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上載者:User
如果你做的網站有會員系統那必須就自動找回密碼功能了,也就是忘記密碼功能,如果使用者忘記了密碼可以通過郵箱或手機號直接找回密碼,下面我來介紹郵箱找回密碼方法。

設定思路

1、使用者註冊時需要提供一個E-MAIL郵箱,目的就是用該郵箱找回密碼。

2、當使用者忘記密碼或使用者名稱時,點擊登入頁面的“找回密碼”超連結,開啟表單,並輸入註冊用的E-MAIL郵箱,提交。

3、系統通過該郵箱,從資料庫中尋找到該使用者資訊,並更新該使用者的密碼為一個臨時密碼(比如:12345678)。

4、系統藉助Jmail功能把該使用者的資訊發送到該使用者的郵箱中(內容包括:使用者名稱、臨時密碼、提醒使用者及時修改臨時密碼的提示)。

5、使用者用臨時密碼即可登入。


HTML

我們在找回密碼的頁面上放置一個要求使用者輸入註冊時所用的郵箱,然後提交前台js來處理互動。

代碼如下 複製代碼

輸入您註冊的電子郵箱,找回密碼:



jQuery

當使用者輸入完郵箱並點擊提交後,jQuery先驗證郵箱格式是否正確,如果正確則通過向後台sendmail.php發送Ajax請求,sendmail.php負責驗證郵箱是否存在和發送郵件,並會返回相應的處理結果給前台頁面,請看jQuery代碼:

代碼如下 複製代碼

$(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("請填寫正確的郵箱!");
}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("該郵箱尚未註冊!");
$("#sub_btn").removeAttr("disabled").val('提 交').css("cursor","pointer");
}else{
$(".demo").html("

"+msg+"

");
}
});
}
});
})

以上使用的jQuery代碼很方便簡潔的完成了前端互動操作,如果您有一定的jQuery基礎,那上面的代碼一目瞭然,不多解釋。

當然別忘了在頁面中載入jQuery庫檔案,有的同學經常問我說從www.bKjia.c0m下載了demo怎麼用不了,那80%是jquery或者其他檔案載入路徑錯了導致沒載入必要的檔案。
PHP

sendmail.php需要驗證Email是否存在系統使用者表中,如果有,則讀取使用者資訊,將使用者id、使用者名稱和密碼驚醒md5加密產生一個特別的字串作為找回密碼的驗證碼,然後構造URL。同時我們為了控制URL連結的時效性,將記錄使用者提交找回密碼動作的操作時間,最後調用郵件發送類發送郵件到使用者郵箱,發送郵件類smtp.class.php已經打包好,請下載。

代碼如下 複製代碼

include_once("connect.php");//串連資料庫

$email = stripslashes(trim($_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){//該郵箱尚未註冊!
echo 'noreg';
exit;
}else{
$row = mysql_fetch_array($query);
$getpasstime = time();
$uid = $row['id'];
$token = md5($uid.$row['username'].$row['password']);//組合驗證碼
$url = "/demo/resetpass/reset.php?email=".$email."
&token=".$token;//構造URL
$time = date('Y-m-d H:i');
$result = sendmail($time,$email,$url);
if($result==1){//郵件發送成功
$msg = '系統已向您的郵箱發送了一封郵件
請登入到您的郵箱及時重設您的密碼!';
//更新資料發送時間
mysql_query("update `t_user` set `getpasstime`='$getpasstime' where id='$uid '");
}else{
$msg = $result;
}
echo $msg;
}

//發送郵件
function sendmail($time,$email,$url){
include_once("smtp.class.php");
$smtpserver = ""; //SMTP伺服器,如smtp.163.com
$smtpserverport = 25; //SMTP伺服器連接埠
$smtpusermail = ""; //SMTP伺服器的使用者郵箱
$smtpuser = ""; //SMTP伺服器的使用者帳號
$smtppass = ""; //SMTP伺服器的使用者密碼
$smtp = new Smtp($smtpserver, $smtpserverport, true, $smtpuser, $smtppass);
//這裡面的一個true是表示使用身分識別驗證,否則不使用身分識別驗證.
$emailtype = "HTML"; //信件類型,文本:text;網頁:HTML
$smtpemailto = $email;
$smtpemailfrom = $smtpusermail;
$emailsubject = "www.bKjia.c0m - 找回密碼";
$emailbody = "親愛的".$email.":
您在".$time."提交了找回密碼請求。請點擊下面的連結重設密碼
(按鈕24小時內有效)。
".$url."";
$rs = $smtp->sendmail($smtpemailto, $smtpemailfrom, $emailsubject, $emailbody, $emailtype);

return $rs;
}

好了,這個時候你的郵箱將會收到一封來自helloweba的密碼找回郵件,郵件內容中有一個URL連結,點擊該連結到www.bKjia.c0m的reset.php來驗證郵箱。

代碼如下 複製代碼

include_once("connect.php");//串連資料庫

$token = stripslashes(trim($_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 = '該連結已到期!';
}else{
//重設密碼...
$msg = '請重新設定密碼,顯示重設密碼錶單,
這裡只是示範,略過。';
}
}else{
$msg = '無效的連結';
}
}else{
$msg = '錯誤的連結!';
}
echo $msg;

reset.php首先接受參數email和token,然後根據email查詢資料表t_user中是否存在該Email,如果存在則擷取該使用者的資訊,並且和sendmail.php中的token組合方式一樣構建token值,然後與url傳過來的token進行對比,如果目前時間與發送郵件時的時間相差超過24小時的,則提示“該連結已到期!”,反之,則說明連結有效,並且調轉到重設密碼頁面,最後就是使用者自己設定新密碼了。

小結:通過註冊郵箱驗證與本文郵件找回密碼,我們知道發送郵件在網站開發中的應用以及它的重要性,當然,現在也流行簡訊驗證應用,這個需要相關的簡訊介面對接就可以了。

最後,附上資料表t_user結構:

代碼如下 複製代碼

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類檔案

代碼如下 複製代碼

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 . [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 . "
;";
}
}
}
?>

最後面有個資料庫連接類,這裡就不介紹了大大家可以百本站找相關的資料庫連接mysql類哦。

http://www.bkjia.com/PHPjc/633135.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/633135.htmlTechArticle如果你做的網站有會員系統那必須就自動找回密碼功能了,也就是忘記密碼功能,如果使用者忘記了密碼可以通過郵箱或手機號直接找回密碼...

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