要求
1）實作Email形式的注冊功能和相應的登入功能；
2）實作忘記密碼時的密碼找回功能；
3）存在資料庫中的密碼不能以明文形式存放，即建議在浏覽器端發送請求前，調用js代碼對使用者的密碼做md5加密
分析
第3）點較簡單，重點學習一波email接收驗證碼。
網上粗略了解了一下，PHP自帶mail()函數可實作郵件的收發，但在php5.3版本後需開啟本地email伺服器才能使用。
是以搭建了hmailserver服務，具體參考：
mysql+hmailServer+roundcubemail整合開發（一）
hMailServer安裝使用教程
Hmailserver+mysql+php安裝指南
檔案拓撲
代碼及示範
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>web實驗2</title>
<script type="text/javascript" src="function.js"></script>
<script type="text/javascript" src="md5.js"></script>
</head>
<body>
<form name="fm1" action="index.php" method="post" οnsubmit="return IsEmpty()">
<div style="text-align: center;">
<h1>登入頁面 </h1><br><br><br>
<input type="text" name="user" placeholder="帳号" id="usr"/>
<select name="mail">
<option value="@163.com">@163.com</option>
<option value="@126.com">@126.com</option>
<option value="@hdu.edu.cn">@hdu.edu.cn</option>
</select>
</br><input type="password" name="password_plain" placeholder="密碼" id="pwd"/>
<input type=hidden name="password_md5" id="pwd1" />
<a href="resetpwd.php">忘記密碼?</a>
</br>
<input type="submit" name="submit" value="登入" οnclick="enCodePWD()"/>
<button οnclick="location.href='register.php'" type="button">注冊</button>
</div>
</form>
</body>
</html> login.php
當登入為空
亦或
<!DOCTYPE html>
<html>
<html>
<head>
<meta charset="UTF-8">
<title>web實驗2</title>
<script type="text/javascript" src="function.js"></script>
<script type="text/javascript" src="md5.js"></script>
</head>
<body>
<form name="fm1" action="" method="post" οnsubmit="return IsEmpty()">
<div style="text-align: center;">
<h1>注冊頁面 </h1><br><br><br>*
<input type="text" name="user" placeholder="帳号" id="usr"/>
<select name="mail">
<option value="@163.com">@163.com</option>
<option value="@126.com">@126.com</option>
<option value="@hdu.edu.cn">@hdu.edu.cn</option>
</select>
</br>*
<input type="password" name="password_plain" placeholder="密碼" id="pwd"/>
<input type=hidden name="password_md5" id="pwd1" />
</br> *
<input type="text" name="code" placeholder="驗證碼" id="cd"/>
<button type="submit" name="bttn" value="1" οnclick="IsEmpty()">點選擷取驗證碼</button>
</br>
<input type="submit" name="submit" value="注冊" οnclick="enCodePWD()"/>
</div>
</form>
</body>
</html>
<?php
$servername = "localhost";$usernm = "root";$passwd = "root";$dbname = "test";
@$c_user[email protected]$_POST['user'][email protected]$_POST['mail'];@[email protected]$_POST['password_md5'];
if((@$_POST['submit'] || @$_POST['bttn']) && $_POST['user'] && $_POST['password_plain']){
// 建立連接配接
$conn = mysqli_connect($servername, $usernm, $passwd, $dbname);
// 檢測連接配接
if (!$conn) {
die("連接配接失敗: ".mysqli_connect_error());
}
else{
@$sql = "SELECT * FROM client where user='".$c_user."'";
$result = mysqli_query($conn, $sql);
//檢錯
if (!$result) {
printf("Error: %s\n", mysqli_error($conn));
exit();
}
//查詢使用者是否存在
if (mysqli_num_rows($result)) {
echo '<script>alert("使用者已存在！");history.go(-1);</script>';
}
else{
if(@$_POST['bttn'])
include_once("reqcode.php");
else
include_once("reg.php");
}
$conn->close();
}
}
?> register.php
先判斷賬号/密碼是否為空/合法
沒輸入驗證碼就注冊
注冊使用者已存在
否則
登入郵箱接收驗證碼
驗證碼有效時間1分鐘
成功注冊，3s後自動跳轉login.php
<!DOCTYPE html>
<html>
<html>
<head>
<meta charset="UTF-8">
<title>web實驗2</title>
<script type="text/javascript" src="function.js"></script>
<script type="text/javascript" src="md5.js"></script>
</head>
<body>
<form name="fm1" action="" method="post">
<div style="text-align: center;">
<h1>更改密碼 </h1><br><br><br>*
<input type="text" name="user" placeholder="帳号" id="usr"/>
<select name="mail">
<option value="@163.com">@163.com</option>
<option value="@126.com">@126.com</option>
<option value="@hdu.edu.cn">@hdu.edu.cn</option>
</select>
</br>*
<input type="password" name="password_plain" placeholder="新密碼" id="pwd"/>
<br>*
<input type="password" name="password_cfm" placeholder="确認密碼" οnblur="return confirm_pwd()" id="pwd2"/></input>
<input type=hidden name="password_md5" id="pwd1" />
</br> *
<input type="text" name="code" placeholder="驗證碼" id="cd"/>
<button type="submit" name="bttn" value="1" οnclick="IsEmpty()">點選擷取驗證碼</button>
</br>
<input type="submit" name="submit" value="送出" οnclick="enCodePWD()"/>
</div>
</form>
</body>
</html>
<?php
$servername = "localhost";$usernm = "root";$passwd = "root";$dbname = "test";
@$c_user[email protected]$_POST['user'][email protected]$_POST['mail'];@[email protected]$_POST['password_md5'];
if((@$_POST['submit'] || @$_POST['bttn']) && $_POST['user'] && $_POST['password_plain'] && $_POST['password_cfm']){
// 建立連接配接
$conn = mysqli_connect($servername, $usernm, $passwd, $dbname);
// 檢測連接配接
if (!$conn) {
die("連接配接失敗: ".mysqli_connect_error());
}
else{
@$sql = "SELECT * FROM client where user='".$c_user."'";
$result = mysqli_query($conn, $sql);
//查詢使用者是否存在
if (mysqli_num_rows($result)) {
if(@$_POST['bttn'])
include_once("reqcode.php");
else
include_once("chng.php");
}
else{
echo '<script>alert("使用者不存在！");history.go(-1);</script>';
}
$conn->close();
}
}
?> resetpwd.php
确認密碼不一緻
成功修改
（其他示範同注冊頁面）
<?php
$servername = "localhost";$usernm = "root";$passwd = "root";$dbname = "test";
if(@$_POST['submit']){
$c_user=$_POST['user'].$_POST['mail'];$c_password=$_POST['password_md5'];
}
// 建立連接配接
$conn = mysqli_connect($servername, $usernm, $passwd, $dbname);
// 檢測連接配接
if (!$conn) {
die("連接配接失敗: ".mysqli_connect_error());
}
else{
@$sql = "SELECT * FROM client where user='".$c_user."' and "."password='".$c_password."'";
$result = mysqli_query($conn, $sql);
//檢錯
if (!$result) {
printf("Error: %s\n", mysqli_error($conn));
exit();
}
//查詢成功
if (mysqli_num_rows($result)) {
//輸出資料
$row = mysqli_fetch_assoc($result);
$username=$row["user"];
echo "Welcome~：".$username."<br>"."Ur password~：".$row["password"];
}
else{
echo '<script>alert("使用者名或密碼錯誤！");history.go(-1);</script>';
}
$conn->close();
}
?> index.php
<?php
session_start();
$rd = rand(100000,999999);
$to = $c_user;
$subject = "驗證碼";
$message = $rd;
$from = "[email protected]";
$headers = "From: $from";
if(mail($to,$subject,$message,$headers)){
echo "<br><br><div style='text-align: center;'>:)<br>驗證碼已發送至郵箱：".$c_user."<br>注冊密碼：".$_POST['password_plain']."<br>請注意查收！！！</div>";
}
setcookie('rd', $rd, time()+5*60);//驗證碼
setcookie('tm', time(), time()+5*60);//驗證碼失效時間的起始時間戳
?> reqcode.php
<?php
//檢測驗證碼是否為空
if(!$_POST['code']){
echo '<script>alert("驗證碼為空！");history.go(-1);</script>';
exit();
}
//驗證碼失效時間為60秒
if (time() - @$_COOKIE['tm'] < 60){
if ($_POST['code'] == $_COOKIE["rd"]) {
@$sqli = "INSERT INTO client (user,password) VALUES ('".$c_user."','".$c_password."')";
$result = mysqli_query($conn, $sqli);
if ($result) {
header('refresh:3; url=login.php');
echo "<br><br><div style='text-align: center;'>):<br>注冊成功,請登入!</div>";;
}
}
else{
echo "<br><br><div style='text-align: center;'>:(<br>驗證碼錯誤!</div>";
}
}
else{
echo "<br><br><div style='text-align: center;'>:(<br>驗證碼已過期!</div>";
}
?> reg.php
<?php
//檢測驗證碼是否為空
if(!$_POST['code']){
echo '<script>alert("驗證碼為空！");history.go(-1);</script>';
exit();
}
//驗證碼失效時間為60秒
if (time() - @$_COOKIE['tm'] < 60){
if ($_POST['code'] == $_COOKIE["rd"]) {
@$sqli = "UPDATE client SET password = '".$c_password."' WHERE user = '".$c_user."'";
$result = mysqli_query($conn, $sqli);
if ($result) {
header('refresh:3; url=login.php');
echo "<br><br><div style='text-align: center;'>):<br>密碼修改成功,請登入!</div>";;
}
}
else{
echo "<br><br><div style='text-align: center;'>:(<br>驗證碼錯誤!</div>";
}
}
else{
echo "<br><br><div style='text-align: center;'>:(<br>驗證碼已過期!</div>";
}
?> chng.php
//md5加密密碼
function enCodePWD(){
document.getElementById('pwd1').value=md5(document.getElementById('pwd').value);
}
function IsEmpty(){
var usr = document.getElementById("usr");
//判斷使用者名是否為空
if(usr.value==""){
alert(":( 使用者名不能為空!");
return false;
}
//判斷使用者名是否合法
if(/^[a-zA-Z0-9]{6,14}$/.test(usr.value) != true){
alert(":( 使用者名不合法!");
return false;
}
var passwd = document.getElementById("pwd");
//判斷密碼是否為空
if(passwd.value==""){
alert(":( 密碼不能為空!");
return false;
}
return true;
}
function confirm_pwd(){
var passwd = document.getElementById("pwd");
var passwd_cfm = document.getElementById("pwd2");
if(passwd.value != passwd_cfm.value){
alert("密碼不一緻");
passwd_cfm.value = "";
return false;
}
return true;
}
/*
var wait=11;
function renew_btn(){
var btn=document.getElementById("btn");
if(wait == 0){
btn.removeAttribute("disabled");
btn.innerHTML="重新擷取驗證碼";
wait=60;
}
else{
if(wait == 11){
alert("驗證碼已發送至你的郵箱，請盡快查收~！");
}
btn.setAttribute("disabled", true);
if(wait<10){
btn.innerHTML=" 重新發送(0"+wait+") ";
}
else{
btn.innerHTML=" 重新發送("+wait+") ";
}
wait--;
setTimeout(function(){renew_btn()},1000)
}
}
*/ function.js
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轉載于:https://www.cnblogs.com/p0pl4r/p/10758395.html