設置思路
1、用戶注冊時需要提供一個E-MAIL郵箱,目的就是用該郵箱找回密碼。
2、當用戶忘記密碼或用戶名時,點擊登錄頁面的“找回密碼”超鏈接,打開表單,並輸入注冊用的E-MAIL郵箱,提交。
3、系統通過該郵箱,從數據庫中查找到該用戶信息,並更新該用戶的密碼為一個臨時密碼(比如:12345678)。
4、系統借助Jmail功能把該用戶的信息發送到該用戶的郵箱中(內容包括:用戶名、臨時密碼、提醒用戶及時修改臨時密碼的提示語)。
5、用戶用臨時密碼即可登錄。
HTML
我們在找回密碼的頁面上放置一個要求用戶輸入注冊時所用的郵箱,然後提交前台js來處理交互。
代碼如下
<p><strong>輸入您注冊的電子郵箱,找回密碼:</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
當用戶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
$(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("該郵箱尚未注冊!"); $("#sub_btn").removeAttr("disabled").val('提 交').css("cursor","pointer"); }else{ $(".demo").html("<h3>"+msg+"</h3>"); } }); } }); })
以上使用的jQuery代碼很方便簡潔的完成了前端交互操作,如果您有一定的jQuery基礎,那上面的代碼一目了然,不多解釋。
當然別忘了在頁面中加載jQuery庫文件,有的同學經常問我說從網上下載了demo怎麼用不了,那80%是jquery或者其他文件加載路徑錯了導致沒加載必要的文件。
PHP
sendmail.php需要驗證Email是否存在系統用戶表中,如果有,則讀取用戶信息,將用戶id、用戶名和密碼驚醒md5加密生成一個特別的字符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鏈接的時效性,將記錄用戶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用戶郵箱,發送郵件類smtp.class.php已經打包好,請下載。
代碼如下
include_once("connect.php");//連接數據庫 $email = stripslashes(trim($_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){//該郵箱尚未注冊! 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 $msg = '系統已向您的郵箱發送了一封郵件<br/>請登錄到您的郵箱及時重置您的密碼!'; //更新數據發送時間 mysql_query("update `t_user` set `getpasstime`='$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服務器,如smtp.163.com $smtpserverport = 25; //SMTP服務器端口 $smtpusermail = ""; //SMTP服務器的用戶郵箱 $smtpuser = ""; //SMTP服務器的用戶帳號 $smtppass = ""; //SMTP服務器的用戶密碼 $smtp = new Smtp($smtpserver, $smtpserverport, true, $smtpuser, $smtppass); //這裡面的一個true是表示使用身份驗證,否則不使用身份驗證. $emailtype = "HTML"; //信件類型,文本:text;網頁:HTML $smtpemailto = $email; $smtpemailfrom = $smtpusermail; $emailsubject = "www.jb51.net - 找回密碼"; $emailbody = "親愛的".$email.":<br/>您在".$time."提交了找回密碼請求。請點擊下面的鏈接重置密碼 (按鈕24小時內有效)。<br/><a href='".$url."'target='_blank'>".$url."</a>"; $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鏈接,點擊該鏈接到reset.php來驗證郵箱。
代碼如下
include_once("connect.php");//連接數據庫 $token = stripslashes(trim($_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 = '該鏈接已過期!'; }else{ //重置密碼... $msg = '請重新設置密碼,顯示重置密碼表單,<br/>這裡只是演示,略過。'; } }else{ $msg = '無效的鏈接'; } }else{ $msg = '錯誤的鏈接!'; } echo $msg;
reset.php首先接受參數email和token,然後根據email查詢數據表t_user中是否存在該Email,如果存在則獲取該用戶的信息,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,如果當前時間與發送郵件時的時間相差超過24小時的,則提示“該鏈接已過期!”,反之,則說明鏈接有效,並且調轉到重置密碼頁面,最後就是用戶自己設置新密碼了。
小結:通過注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,現在也流行短信驗證應用,這個需要相關的短信接口對接就可以了。
最後,附上數據表t_user結構:
代碼如下
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類文件
代碼如下
<?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 . " ;"; } } } ?>
最後面有個數據庫連接類,這裡就不介紹了大家可以百本站找相關的數據庫連接mysql類哦
以上這篇PHP會員找回密碼功能的簡單實現就是小編分享給大家的全部內容了,希望能給大家一個參考,也希望大家多多支持幫客之家。