主要是登錄注冊功能，前端后台驗證沒有什么，這個大家可以自己加上去，比如過濾啊，正則啊等
還是先放圖吧
這是登錄及注冊界面 點擊注冊切換到注冊界面，點擊登錄切換到登錄界面
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script src="js/jquery.js" type="text/javascript" charset="utf-8"></script>
<style type="text/css">
body,html{
padding: 0px;
margin: 0px;
}
.header {
width: 100%;
padding: 0px;
margin: 0px;
background-color: #699C03;
}
.header-nav {
min-width: 1170px;
height: 50px;
line-height: 50px;
}
.header-nav-left {
float: left;
padding-left: 150px;
margin-top: 10px;
}
.header-nav-left h3 {
font-size: 18px;
line-height: 25px;
margin: 0px;
color: #fff;
}
.header-nav-right {
float: right;
width: 59.9999%;
position: relative;
height: 50px;
}
.header-nav-right ul {
padding: 0px;
margin: 0px;
list-style: none;
position: absolute;
right: 25px;
}
.header-nav-right ul li {
float: left;
margin-left: 5px;
color: #fff;
}
.header-nav-right ul li a {
color: #fff;
text-decoration: none;
}
.user{
min-width:980px;
text-align: center;
margin: 0px;
padding: 0px;
position: relative;
}
.user-list{
width:470px;
height: 250px;
padding: 15px;
margin: 20px auto;
position: relative;
border: 1px solid #DBDBDB;
}
.user-list ul{
list-style: none;
width: 100%;
overflow: hidden;
height: 250px;
position: relative;
padding: 10px 0px;
margin: 0px;
}
.user-list ul li{
width: 100%;
list-style: none;
margin-bottom:15px;
}
.user-list ul li i{
color: red;
}
.user-list ul li label{
display: inline-block;
width:12%;
text-align: right;
font-size:16px;
margin-right: 10px;
font-family: "微軟雅黑";
}
.user-list ul li input{
display: inline-block;
border: 1px solid #DBDBDB;
border-radius:4px;
-webkit-border-radius: 4px;
-moz-border-radius: 4px;
-ms-border-radius:4px;
height: 30px;
padding: 2px 5px;
vertical-align:middle;
}
.buttons{
width: 100%;
height:35px;
padding: 5px 10px;
position: absolute;
bottom: 40px;
left: 0px;
right: 0px;
}
.openbutton,.onbutton{
display: inline-block;
width: 40%;
}
.buttons button{
width: 90%;
color: #fff;
padding: 5px 10px;
background-color: #4CB0F9;
border: 1px solid #4CB0F9;
border-radius: 4px;
vertical-align: middle;
height: 35px;
line-height: 25px;
cursor:pointer;
}
#form2{
display: none;
}
</style>
</head>
<body>
<div class="header">
<div class="header-nav">
<div class="header-nav-left">
<h3>網站后台管理</h3>
</div>
<div class="header-nav-right">
<ul>
<li><span>歡迎到來到網站后台</span></li>
<li><a href="" onclick="window.location.reload()">主菜單</a></li>
<li><a href="">網站首頁</a></li>
<li><a href="Index.html">后台主頁</a></li>
<li><a href="">內容管理</a></li>
<li><a href="">退出</a></li>
</ul>
</div>
</div>
</div>
<div class="user">
<div class="user-list">
<form id="form1" action="" method="post">
<ul>
<li><label>用戶名</label><input type="text" name="username" id="username" placeholder="手機號碼或郵箱"/></li>
<li><label>密碼</label><input type="password" name="pass" id="pass" placeholder="6-15位密碼" /></li>
<div class="buttons">
<a class="onbutton"><button type="submit" id="onsubmit">登錄</button></a>
<a class="openbutton"><button type="submit" id="getform2">注冊</button></a>
</div>
</ul>
</form>
<form id="form2" action="" method="post">
<ul>
<li><label>用戶名</label><input type="text" name="username" id="getusername" placeholder="手機號碼或郵箱"/><i>*</i></li>
<li><label>密碼</label><input type="password" name="pass" id="getpass" placeholder="6-15位密碼" /><i>*</i></li>
<div class="buttons">
<a class="getbutton"><button type="submit" id="getsubmit">提交注冊信息</button></a>
<p>已有賬號立即<a href="#" id="getform1">登錄</a></p>
</div>
</ul>
</form>
</div>
</div>
<script type="text/javascript">
$(function(){
$(".onbutton #onsubmit").on('click',function(){
var $username = $("#username").val(),
$pass = $("#pass").val();
if($username=='' || $pass==''){
alert("用戶名及密碼不能為空");
return false;
}else{
var datas={
username:$username,
pass:$pass
};
$.ajax({
url:'user.php',
type:'post',
dataType:'json',
data:datas,
success:function(result){
if(result=='nameerror'){
alert('用戶名不存在');
}else if(result=="passerror"){
alert("密碼錯誤");
}else{
window.location.href = 'http://www.sogou.com';//登錄成功跳轉
}
},
error:function(){
alert('false');
}
})
}return false;
})
$("#getsubmit").click(function(){
var $username = $("#getusername").val(),
$pass = $("#getpass").val();
if($username=='' || $pass==''){
alert("用戶名及密碼不能為空");
return false;
}else{
var datas={
username:$username,
pass:$pass
}
$.ajax({
url:'adduser.php',
type:'post',
data:datas,
dataType:'json',
success:function(reslut){
if(reslut=="repeat"){
alert("該用戶名已存在");
}else if(reslut=='success'){
alert("注冊成功");
//注冊成功后立即切換至登錄表單,並記住用戶名及密碼;
$("#form2").hide();
$("#form1").show();
$("#username").val($username);
$("#pass").val($pass);
}
else{
alert('false');
}
}
})
}return false;
})
})
</script>
<script type="text/javascript">
document.getElementById('getform2').onclick = function(){
document.getElementById('form1').style.display= 'none';
document.getElementById('form2').style.display= 'block';
return false;
}
document.getElementById('getform1').onclick = function(){
document.getElementById('form2').style.display= 'none';
document.getElementById('form1').style.display= 'block';
return false;
}
</script>
</body>
</html>
以上是前端代碼
下面貼后台代碼 ，登錄
<?php
@header("content-type:text/html;charset=utf8");
$conne = mysql_connect("localhost","root","root")or die("數據庫用戶名密碼錯誤".@mysql_error());
$select =mysql_select_db("test",$conne);
$utf = mysql_query("set names utf8");
$username=$_REQUEST['username'];
$pass = $_REQUEST['pass'];
$arrays = array(array('one'=>'nameerror','two'=>'passerror'));
$sqlname = mysql_query("select count(*) from user where username= '$username'");
$row = mysql_fetch_row($sqlname);
$num = $row[0];
//查看用戶是否存在
if(!$num){
echo json_encode($arrays[0]['one']);//不存在返回nameerror
}else{
$sqlpass = mysql_query("select pass from user where username='$username'");//返回一個句柄；
$passarray = mysql_fetch_row($sqlpass);//獲得一個只有一行數據的數族
$passval = $passarray[0];//這里才是對應用戶的密碼
//判斷該用戶的密碼是否正確
if($passval!=$pass){
echo json_encode($arrays[0]['two']);//不正確返回passerror
}
}
?>
注冊
<?php @header("content-type:text/html;charset=uft8"); $conne = mysql_connect("localhost","root","root")or die("數據庫用戶名或密碼錯誤".@mysql_error()); $select = mysql_select_db("test",$conne)or die("數據庫用戶名或密碼錯誤".@mysql_error()); $utf = mysql_query("set names utf8"); $username= $_REQUEST['username']; $pass = $_REQUEST['pass']; $arrays = array(array("one"=>'repeat','two'=>'success')); $sql = mysql_query("select count(*) from user where username='$username'"); $row = mysql_fetch_row($sql); $num = $row[0]; //判斷用戶名是否已經被注冊了 if($num == 1){ echo json_encode($arrays[0]['one']);//被注冊返回repeat }else{ mysql_query("insert into user(username,pass) values('$username','$pass')"); echo json_encode($arrays[0]['two']); } ?>