1.新建三个html文件，两个php文件和若干个CSS文件和若干个JS文件
2.登录的html页面显示效果图
3.注册的页面的显示效果图
4.登录页面的form表单代码
div class="sign-con w1200">
img src="img/logn-tu.gif" class="sign-contu f-l"/>
form action="login.php" method="post">
div class="sign-ipt f-l">
p>用户名：/p>
input type="text" name="username" placeholder="手机号/邮箱" />
p>密码：/p>
input type="password" name="password" placeholder="密码可见" />
br />
button class="slig-btn">登录/button>
p>
没有账号？请
a href="regist.html" rel="external nofollow" >注册/a>
a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="wj">忘记密码？/a>
/p>
div class="sign-qx">
a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="f-r">
img src="img/sign-xinlan.gif" />
/a>
a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="qq f-r">
img src="img/sign-qq.gif" />
/a>
div style="clear: both;">/div>
/div>
/div>
/form>
div style="clear: both;">/div>
/div>
5.注册页面的form表单代码
div class="password-con registered">
form action="regist.php" method="post">
div class="psw">
p class="psw-p1">用户名/p>
input type="text" name="username" placeholder="HR了" />
span class="dui">/span>
/div>
div class="psw">
p class="psw-p1">输入密码/p>
input type="password" name="password" placeholder="请输入密码" />
span class="cuo">密码由6-16的字母、数字、符号组成/span>
/div>
div class="psw">
p class="psw-p1">确认密码/p>
input type="password" name="repassword" placeholder="请再次输入密码" />
span class="cuo">密码不一致，请重新输入/span>
/div>
div class="psw psw2">
p class="psw-p1">手机号/邮箱/p>
input type="text" name="telphone" placeholder="请输入手机/邮箱验证码" />
button>获取短信验证码/button>
/div>
div class="psw psw3">
p class="psw-p1">验证码/p>
input type="text" placeholder="请输入验证码" />
/div>
div class="yanzhentu">
div class="yz-tu f-l">
img src="img/psw-yanzhengtu.gif" />
/div>
p class="f-l">
看不清楚？
a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >换张图/a>
/p>
div style="clear: both;">/div>
/div>
div class="agreement">
input type="checkbox" name="hobby" />
p>
我有阅读并同意
span>《宅客微购网站服务协议》/span>
/p>
/div>
button type="submit" value="注册" class="psw-btn">立即注册/button>
p class="sign-in">
已有账号？请
a href="login.html" rel="external nofollow" >登录/a>
/p>
/form>
/div>!-- 注册框结束 -->
6.login.php代码
?php
header("Content-type: text/html; charset=utf-8");
$username = $_POST['username'];
$password = $_POST['password'];
$conn = new mysqli('localhost','root','root','shopping');
if ($conn->connect_error){
echo '数据库连接失败！';
exit(0);
}else{
if ($username == ''){
echo 'script>alert("请输入用户名！");history.go(-1);/script>';
exit(0);
}
if ($password == ''){
echo 'script>alert("请输入密码！");history.go(-1);/script>';
exit(0);
}
$sql = "select username,password from userinfo where username = '$_POST[username]' and password = '$_POST[password]'";
$result = $conn->query($sql);
$number = mysqli_num_rows($result);
if ($number) {
echo 'script>window.location="index.html";/script>';
} else {
echo 'script>alert("用户名或密码错误！");history.go(-1);/script>';
}
}
?>
7.regist.php代码
?php
header("Content-type: text/html; charset=utf-8");
$username = $_POST['username'];
$password = $_POST['password'];
$repassword = $_POST['repassword'];
$telphone = $_POST['telphone'];
if ($username == ''){
echo 'script>alert("请输入用户名！");history.go(-1);/script>';
exit(0);
}
if ($password == ''){
echo 'script>alert("请输入密码");history.go(-1);/script>';
exit(0);
}
if ($password != $repassword){
echo 'script>alert("密码与确认密码应该一致");history.go(-1);/script>';
exit(0);
}
if($password == $repassword){
$conn = new mysqli('localhost','root','root','shopping');
if ($conn->connect_error){
echo '数据库连接失败！';
exit(0);
}else {
$sql = "select username from userinfo where username = '$_POST[username]'";
$result = $conn->query($sql);
$number = mysqli_num_rows($result);
if ($number) {
echo 'script>alert("用户名已经存在");history.go(-1);/script>';
} else {
$sql_insert = "insert into userinfo (username,password,telphone) values('$_POST[username]','$_POST[password]','$_POST[telphone]')";
$res_insert = $conn->query($sql_insert);
if ($res_insert) {
echo 'script>window.location="index.html";/script>';
} else {
echo "script>alert('系统繁忙，请稍候！');/script>";
}
}
}
}else{
echo "script>alert('提交未成功！'); history.go(-1);/script>";
}
?>
8.进入首页后的图片
9.数据库的图片
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