前言
登陆和注册已经是网站的标配了，所以这是我们web开发学习过程中必学的了。其实很容易实现，只需要懂数据库的增删改查，还有if_else的条件语句即可做出来。
目录
css
--Login-Reg.css
server
--LoginUser.php
--RegUser.php
--LoginFrom.html
--RegForm.html
注册
RegForm.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>用户注册</title>
<link rel="stylesheet" type="text/css" href="css/Login-Reg.css">
</head>
<body>
<h2 id="Reg-text">用户注册</h2>
<div id="Form-con">
<form id="form1" onsubmit="return false" action="##" method="post">
<input type="text" name="username" class="inputStyle" placeholder="请输入账号"><br/>
<input type="password" name="password" class="inputStyle" placeholder="请输入密码"><br/>
<input type="password" name="cpassword" class="inputStyle" placeholder="请确认密码"><br/>
<input type="submit" class="btnStyle" value="注册" onclick="RegUser()">
</div>
<div id="Result"></div>
</form>
</body>
<!-- AJAX提交表单 -->
<script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script type="text/javascript">
function RegUser() {
$.ajax({
type: "POST",//方法
url: "../server/RegUser.php" ,//表单接收url
data: $('#form1').serialize(),
success: function (data) {
//提交成功
var result=document.getElementById("Result");
result.innerHTML=data[0].result;
//注册后跳转
if (data[0].result == "注册成功") {
location.href="LoginFrom.html";
}
},
error : function(data) {
//提交失败
var result=document.getElementById("Result");
result.innerHTML="连接服务器失败";
}
});
}
</script>
</html>
RegUser.php
<?php
header("Content-type:application/json");
// 注册账号验证
$username = $_POST["username"];//获取表单POST过来的用户名
$password = $_POST["password"];//获取表单POST过来的密码
$cpassword = $_POST["cpassword"];//获取表单POST过来的重复密码
//表单过滤
$user = trim($username);//过滤空格
$psw = trim($password);//过滤空格
$cpsw = trim($cpassword);//过滤空格
//开始判断
if($user == "" && $psw == "" && $cpsw == ""){
echo "[{\"result\":\"都还没填呢！\"}]";
}else if($user == "" && $psw == ""){
echo "[{\"result\":\"账号和密码都还没填呢\"}]";
}else if ($psw == "" && $cpsw == "") {
echo "[{\"result\":\"密码都还没填呢\"}]";
}else if($user == "" && $cpsw == ""){
echo "[{\"result\":\"账号和重复密码还没填呢\"}]";
}else if ($user == "") {
echo "[{\"result\":\"账号还没填呢\"}]";
}else if ($psw == "") {
echo "[{\"result\":\"密码还没填呢\"}]";
}else if ($cpsw == "") {
echo "[{\"result\":\"重复密码还没填呢\"}]";
}else if ($psw !== $cpsw) {
echo "[{\"result\":\"两次输入密码不一样呢\"}]";
}else if (strlen($user) < 5){
echo "[{\"result\":\"账号不能小于5位数\"}]";
}else if (strlen($psw) < 8){
echo "[{\"result\":\"密码不能小于8位数\"}]";
}else if (preg_match('/^[\x{4e00}-\x{9fa5}]+$/u', $user)>0){
echo "[{\"result\":\"账号不能为中文\"}]";
}else if (preg_match('/[\x{4e00}-\x{9fa5}]/u', $user)>0){
echo "[{\"result\":\"账号不能存在中文\"}]";
}else if(preg_match("/[\'.,:;*?~`!@#$%^&+=)(<>{}]|\]|\[|\/|\\\|\"|\|/",$user)){
echo "[{\"result\":\"账号不能存在特殊符号\"}]";
}else{
//生成用户ID，为简单学习，随机生成随机数
$uid = rand(10000,99999);
//密码MD5加密
$md5psw = MD5($psw);
// 数据库连接
$con = mysql_connect("localhost","root","root");
mysql_select_db("test", $con);
mysql_query("SET NAMES UTF8");
//查询数据库是否有存在该用户
$exist = mysql_query("SELECT * FROM userlist WHERE username = '$user'");
$exist_result = mysql_num_rows($exist);
if($exist_result){
//如果存在该用户
echo "[{\"result\":\"该账号已被注册\"}]";
}else{
//插入数据库
mysql_query("INSERT INTO userlist (username, password, userid) VALUES ('$user', '$md5psw', '$uid')");
echo "[{\"result\":\"注册成功\"}]";
}
}
?>
登陆
LoginFrom.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>用户登陆</title>
<link rel="stylesheet" type="text/css" href="css/Login-Reg.css">
</head>
<body>
<h2 id="Reg-text">用户登陆</h2>
<div id="Form-con">
<form id="form1" onsubmit="return false" action="##" method="post">
<input type="text" name="username" class="inputStyle" placeholder="请输入账号"><br/>
<input type="password" name="password" class="inputStyle" placeholder="请输入密码"><br/>
<input type="submit" class="btnStyle" value="登陆" onclick="LoginUser()">
</div>
<div id="Result"></div>
</form>
</body>
<!-- AJAX提交表单 -->
<script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script type="text/javascript">
function LoginUser() {
$.ajax({
type: "POST",//方法
url: "../server/LoginUser.php" ,//表单接收url
data: $('#form1').serialize(),
success: function (data) {
var result=document.getElementById("Result");
//提交成功
result.innerHTML=data[0].result;
if (data[0].result == "登陆成功") {
result.innerHTML="登陆成功";
}else if (data[0].result == "fail") {
result.innerHTML="登陆失败，账号或密码错误";
}
},
error : function(data) {
//提交失败的提示词或者其他反馈代码
var result=document.getElementById("Result");
result.innerHTML="连接服务器失败";
}
});
}
</script>
</html>
LoginUser.php
<?php
header("Content-type:application/json");
// 注册账号验证
$username = $_POST["username"];//获取表单POST过来的用户名
$password = $_POST["password"];//获取表单POST过来的密码
//表单过滤
$user = trim($username);//过滤空格
$psw = trim($password);//过滤空格
//开始判断
if($user == "" && $psw == ""){
echo "[{\"result\":\"账号和密码都没填呢！\"}]";
}else if ($user == "") {
echo "[{\"result\":\"账号还没填呢\"}]";
}else if ($psw == "") {
echo "[{\"result\":\"密码还没填呢\"}]";
}else{
// 数据库连接
$con = mysql_connect("localhost","root","root");
mysql_select_db("test", $con);
mysql_query("SET NAMES UTF8");
//校验MD5密码
$md5psw = MD5($psw);
//查询数据库账号密码是否一致
$exist = mysql_query("SELECT * FROM userlist WHERE username = '$user' AND password = '$md5psw'");
$exist_result = mysql_num_rows($exist);
if($exist_result){
echo "[{\"result\":\"登陆成功\"}]";
}else{
echo "[{\"result\":\"fail\"}]";
}
}
?>
数据库
自增id --id --int(11)
用户id --userid -- varchar(32)
用户名 --username -- varchar(32)
密码 --password -- varchar(32)
注册时间 --regtime --timestamp
demo
http://www.likeyunba.com/demo...
Author：TANKING
web:http://likeyunba.com
WeChat:likeyunba520
Date:2019-2-2
