用PHP代码实现一个漂亮的登录注册前后端关联的界面
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2024-03-22 23:14:04
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用PHP代码实现一个漂亮的登录注册前后端关联的界面
登录界面
没输入用户名或者密码的提示
用户名或者密码错误的提示
Login.php.
<!DOCTYPE html>
<html>
<head>
<title>登录</title>
<link rel="stylesheet" href="login.css">
<meta name="content-type"; charset="UTF-8">
</head>
<body>
<div id="bigBox">
<h1>登录页面</h1>
<form id="loginform" action="loginaction.php" method="post">
<div class="inputBox">
<div class="inputText">
<input type="text" id="name" name="username" placeholder="Username" value="">
</div>
<div class="inputText">
<input type="password" id="password" name="password" placeholder="Password">
</div>
<br >
<div style="color: white;font-size: 12px" >
<?php
$err = isset($_GET["err"]) ? $_GET["err"] : "";
switch ($err) {
case 1:
echo "用户名或密码错误!";
break;
case 2:
echo "用户名或密码不能为空!";
break;
} ?>
</div>
<div class="register">
<a href="register.php" style="color: white">注册账号</a>
</div>
<div class="fgtpwd">
<a href="#" style="color: white">忘记密码</a>
</div>
</div>
<div>
<input type="submit" id="login" name="login" value="登录" class="loginButton m-left">
<input type="reset" id="reset" name="reset" value="重置" class="loginButton">
</div>
</div>
</div>
</form>
</body>
</html>
login.css
背景图片自己找一张好看一点的
body
{
margin: 0;
padding: 0;
background-image: url("image/bgimg.jpg"); /* 背景图片 */
background-repeat: no-repeat; /* 背景图片不重复 */
}
#bigBox
{
margin: 0 auto; /* login框剧中 */
margin-top: 170px; /* login框与顶部的距离 */
padding: 20px 50px; /* login框内部的距离(内部与输入框和按钮的距离) */
background-color: #00000090; /* login框背景颜色和透明度 */
width: 400px;
height: 300px;
border-radius: 10px; /* 圆角边 */
text-align: center; /* 框内所有内容剧中 */
}
#bigBox h1
{
color: white; /* LOGIN字体颜色 */
font-family: "Comic Sans MS";
}
#bigBox .inputBox
{
margin-top: 20px; /* 输入框顶部与LOGIN标题的间距 */
}
#bigBox .inputBox .inputText
{
margin-top: 20px; /* 输入框之间的距离 */
}
#bigBox .inputBox .inputText input
{
border: 0; /* 删除输入框边框 */
padding: 10px 10px; /* 输入框内的间距 */
border-bottom: 1px solid white; /* 输入框白色下划线 */
background-color: #00000000; /* 输入框透明 */
color: white; /* 输入字体的颜色 */
}
#bigBox .loginButton
{
margin-right: 30px;
margin-top: 40px; /* 按钮顶部与输入框的距离 */
width: 100px;
height: 25px;
color: white; /* 按钮字体颜色 */
border: 0; /* 删除按钮边框 */
border-radius: 20px; /* 按钮圆角边 */
background-image: linear-gradient(to right, #b8cbb8 0%, #b8cbb8 0%, #b465da 0%, #cf6cc9 33%, #ee609c 66%, #ee609c 100%); /* 按钮颜色 */
}
.m-left{
margin-left: 30px;
}
.register{
position: absolute;
margin-bottom: 1000px;
right: 10px;
color: #ffffff;
/*left: calc(5% - 200px);*/
margin-right:800px;
/*bottom: 240px;*/
font-size: 13px;
}
.fgtpwd{
position: absolute;
margin-bottom: 1000px;
right: 10px;
color: #ffffff;
/*left: calc(5% - 200px);*/
margin-right:666px;
/*bottom: 240px;*/
font-size: 13px;
}
Loginaction.php
本来在登录界面有一个记住我的单选框,但是后来觉得太难看删掉了,但是代码里没有删,反正不会报错就行了,懒得改了
<?php
header("Content-Type: text/html;charset=utf-8");
// $Id:$ //声明变量
$username = isset($_POST['username']) ? $_POST['username'] : "";
$password = isset($_POST['password']) ? $_POST['password'] : "";
$remember = isset($_POST['remember']) ? $_POST['remember'] : ""; //判断用户名和密码是否为空
if (!empty($username) && !empty($password)) { //建立连接
$conn = mysqli_connect('localhost', 'root', '', 'user'); //准备SQL语句
$sql_select = "SELECT username,password FROM usertext WHERE username = '$username' AND password = '$password'"; //执行SQL语句
$ret = mysqli_query($conn, $sql_select);
$row = mysqli_fetch_array($ret); //判断用户名或密码是否正确
if ($username == $row['username'] && $password == $row['password'])
{ //选中“记住我” //本来在登录界面有一个记住我的单选框,但是后来觉得太难看删掉了,但是代码里没有删,反正不会报错就行了,懒得改了
if ($remember == "on")
{ //创建cookie
setcookie("", $username, time() + 7 * 24 * 3600);
} //开启session
session_start(); //创建session
$_SESSION['user'] = $username; //写入日志
$ip = $_SERVER['REMOTE_ADDR'];
$date = date('Y-m-d H:m:s');
$info = sprintf("当前访问用户:%s,IP地址:%s,时间:%s /n", $username, $ip, $date);
$sql_logs = "INSERT INTO logs(username,ip,date) VALUES('$username','$ip','$date')";
//日志写入文件,如实现此功能,需要创建文件目录logs
$f = fopen('./logs/' . date('Ymd') . '.log', 'a+');
fwrite($f, $info);
fclose($f); //跳转到loginsucc.php页面
header("Location:loginsucc.php"); //关闭数据库,跳转至loginsucc.php
mysqli_close($conn);
}
else
{
//用户名或密码错误,赋值err为1
header("Location:login.php?err=1");
}
} else { //用户名或密码为空,赋值err为2
header("Location:login.php?err=2");
}
登录成功的界面我就随便写了一个loginsucc.php
<!DOCTYPE html>
<html>
<head>
<title>登录成功</title>
<meta name="content-type";
charset="UTF-8">
</head>
<body>
<div>
<?php
// $Id:$ //开启session
session_start(); //声明变量
$username = isset($_SESSION['user']) ? $_SESSION['user'] : ""; //判断session是否为空
if (!empty($username)) { ?>
<h1>登录成功!</h1> 欢迎您!
<?php
echo $username; ?>
<br/> <a href="login.php">退出</a> //跳转至主网页
<?php
} else { //未登录,无权访问
?>
<h1>你无权访问!!!</h1>
<?php
} ?> </div>
</body>
</html>
注册界面
那些密码不一致的提示的图片我就不放了,跟登录差不多,嘻嘻
register.php
<!DOCTYPE html>
<html>
<head>
<title>注册</title>
<link rel="stylesheet" href="register.css">
<meta name="content-type"; charset="UTF-8">
</head>
<body>
<div id="bigBox">
<h1>注册页面</h1>
<form action="registeraction.php" method="post">
<div class="inputBox">
<div class="inputText">
<input type="text" id="id_name" name="username" required="required" placeholder="Username">
</div>
<div class="inputText">
<input type="password" id="password" name="password" required="required" placeholder="Password">
</div>
<div class="inputText">
<input type="password" id="re_password" name="re_password" required="required" placeholder="PasswordAgain">
</div>
<div class="inputText m-plc" style="color: white;opacity: 70%">
Sex:
<input type="radio" id="sex" name="sex" value="mam" style="color: white">男
<input type="radio" id="sex" name="sex" value="woman" style="color: white">女
</div>
<div class="inputText">
<input type="text" id="qq" name="qq" required="required" placeholder="QQ">
</div>
<div class="inputText">
<input type="email" id="email" name="email" required="required" placeholder="Email">
</div>
<div class="inputText">
<input type="text" id="phone" name="phone" required="required" placeholder="Phone">
</div>
<div class="inputText">
<input type="text" id="address" name="address" required="required" placeholder="Address">
</div>
<br>
<div style="color: white;font-size: 12px" >
<!--提示信息-->
<?php
$err = isset($_GET["err"]) ? $_GET["err"] : "";
switch ($err) {
case 1:
echo "用户名已存在!";
break;
case 2:
echo "密码与重复密码不一致!";
break;
case 3:
echo "注册成功!";
break;
}
?>
</div>
</div>
<div>
<input type="submit" id="register" name="register" value="注册" class="loginButton m-left">
<input type="reset" id="reset" name="reset" value="重置" class="loginButton">
</div>
<div class="register">
<a href="login.php" style="color: white">已有账号,去登录</a>
</div>
</form>
</div>
</body>
</html>
register.css
body
{
margin: 0;
padding: 0;
background-image: url("image/bgimg.jpg"); /* 背景图片 */
background-repeat: no-repeat; /* 背景图片不重复 */
}
#bigBox
{
margin: 0 auto; /* login框剧中 */
margin-top: 90px; /* login框与顶部的距离 */
padding: 20px 50px; /* login框内部的距离(内部与输入框和按钮的距离) */
background-color: #00000090; /* login框背景颜色和透明度 */
width: 500px;
height: 500px;
border-radius: 10px; /* 圆角边 */
text-align: center; /* 框内所有内容剧中 */
}
#bigBox h1
{
color: white; /* LOGIN字体颜色 */
font-family: "Comic Sans MS";
}
#bigBox .inputBox
{
margin-top: 15px; /* 输入框顶部与LOGIN标题的间距 */
}
#bigBox .inputBox .inputText
{
margin-top: 6px; /* 输入框之间的距离 */
}
#bigBox .inputBox .inputText input
{
border: 0; /* 删除输入框边框 */
padding: 10px 10px; /* 输入框内的间距 */
border-bottom: 1px solid white; /* 输入框白色下划线 */
background-color: #00000000; /* 输入框透明 */
color: white; /* 输入字体的颜色 */
}
#bigBox .loginButton
{
margin-right: 30px;
margin-top: 14px; /* 按钮顶部与输入框的距离 */
width: 100px;
height: 25px;
color: white; /* 按钮字体颜色 */
border: 0; /* 删除按钮边框 */
border-radius: 20px; /* 按钮圆角边 */
background-image: linear-gradient(to right, #b8cbb8 0%, #b8cbb8 0%, #b465da 0%, #cf6cc9 33%, #ee609c 66%, #ee609c 100%); /* 按钮颜色 */
}
.m-left{
margin-left: 40px;
}
.m-plc{
margin-right: 30px;
margin-top: 30px;
}
.register{
position: absolute;
/*margin-bottom: 1000px;*/
right: 10px;
color: #ffffff;
/*left: calc(5% - 200px);*/
margin-right:700px;
/*bottom: 240px;*/
font-size: 13px;
color: white;
bottom: 70px;
}
registeraction.php
mysqli_set_charset($conn,“utf8”);
这句话很重要,不然写进数据库的中文会乱码
<?php
header("Content-Type: text/html;charset=utf-8");
// $Id:$ //声明变量
$username = isset($_POST['username']) ? $_POST['username'] : "";
$password = isset($_POST['password']) ? $_POST['password'] : "";
$re_password = isset($_POST['re_password']) ? $_POST['re_password'] : "";
$sex = isset($_POST['sex']) ? $_POST['sex'] : "";
$qq = isset($_POST['qq']) ? $_POST['qq'] : "";
$email = isset($_POST['email']) ? $_POST['email'] : "";
$phone = isset($_POST['phone']) ? $_POST['phone'] : "";
$address = isset($_POST['address']) ? $_POST['address'] : "";
if ($password == $re_password) { //建立连接
$conn = mysqli_connect("localhost", "root", "", "user"); //准备SQL语句,查询用户名
mysqli_set_charset($conn,"utf8");
$sql_select = "SELECT username FROM usertext WHERE username = '$username'"; //执行SQL语句
$ret = mysqli_query($conn, $sql_select);
$row = mysqli_fetch_array($ret); //判断用户名是否已存在
if ($username == $row['username']) { //用户名已存在,显示提示信息
header("Location:register.php?err=1");
} else { //用户名不存在,插入数据 //准备SQL语句
$sql_insert = "INSERT INTO usertext(username,password,sex,qq,email,phone,address)
VALUES('$username','$password','$sex','$qq','$email','$phone','$address')"; //执行SQL语句
mysqli_query($conn, $sql_insert);
header("Location:register.php?err=3");
} //关闭数据库
mysqli_close($conn);
} else {
header("Location:register.php?err=2");
} ?>
数据库
完结撒花,嘿嘿
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