PHP实现简单注册登录 详细全部代码 先看演示~
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示例图：
Ps.本人有点懒哈~ 就输出个成功算了吧~
PHP实现登录注册
- index.php (首页)
- login.php (登录)
- register.php (注册)
代码里面注释写很详细了哦~ 废话不多说 直接上代码~
index.php
代码：
<!DOCTYPE html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><title>Zhe - 注册登录</title><link rel="stylesheet" type="text/css" href="https://www.layuicdn.com/layui/css/layui.css" /><script src="https://www.layuicdn.com/layui/layui.js" charset="utf-8"></script></head><body><fieldset class="layui-elem-field layui-field-title" style="margin-top: 20px;"><legend>Zhe - 登录注册演示</legend></fieldset> <div style="padding: 20px; background-color: #F2F2F2;"><div class="layui-row layui-col-space15"><div class="layui-col-md6"><div class="layui-card"><div class="layui-card-header">注册</div><div class="layui-card-body"><form class="layui-form" action="register.php" method="post" onsubmit="return checkForm(this)" lay-filter="example"><div class="layui-form-item"><label class="layui-form-label">输入框</label><div class="layui-input-block"><input type="text" name="username" placeholder="请输入账号" class="layui-input"></div></div><div class="layui-form-item"><label class="layui-form-label">密码框</label><div class="layui-input-block"><input type="password" name="password" placeholder="请输入密码" class="layui-input"></div></div> <div class="layui-form-item"><div class="layui-input-block"><input type="submit" class="layui-btn layui-btn-normal" value="立即注册"/></div></div></form></div></div></div><div class="layui-col-md6"><div class="layui-card"><div class="layui-card-header">登录</div><div class="layui-card-body"><form class="layui-form" action="login.php" method="post" onsubmit="return checkForm(this)" lay-filter="example"><div class="layui-form-item"><label class="layui-form-label">输入框</label><div class="layui-input-block"><input type="text" name="username" placeholder="请输入账号" class="layui-input"></div></div><div class="layui-form-item"><label class="layui-form-label">密码框</label><div class="layui-input-block"><input type="password" name="password" placeholder="请输入密码" class="layui-input"></div></div> <div class="layui-form-item"><div class="layui-input-block"><input type="submit" class="layui-btn layui-btn-normal" value="立即登录"/></div></div></form></div></div></div></div></div><script type="text/javascript">// 验证输入不为空的脚本代码function checkForm(form) {if(form.username.value == "") {alert("用户名不能为空!");form.username.focus();return false;}if(form.password.value == "") {alert("密码不能为空!");form.password.focus();return false;}return true;}</script></body></html>login.php
代码：
<?phpsession_start();header("content-type:text/html;charset=utf-8");//连接数据库$link = mysqli_connect("localhost","pay_com_cn","pay_com_cn","pay_com_cn");if (!$link) {die("连接失败: " . mysqli_connect_error());}//接收$_POST用户名和密码$username = $_POST['username'];$password = $_POST['password'];//查看表user用户名与密码和传输值是否相等$sql = "SELECT * FROM user WHERE username = '$username' AND password = '$password'";//result必需规定由 mysqli_query()、mysqli_store_result() 或 mysqli_use_result() 返回的结果集标识符。$result = mysqli_query($link,$sql);$num = mysqli_num_rows($result);//函数返回结果集中行的数量//判断是否登录后显示或跳转if($num){echo '登录成功';}else{echo'登录失败';}mysqli_close($link);//关闭数据库 ?>register.php
代码：
<?phpheader("content-type:text/html;charset=utf-8");//连接数据库$link = mysqli_connect("localhost","pay_com_cn","pay_com_cn","pay_com_cn");if (!$link) {die("连接失败: " . mysqli_connect_error());}//接收$_POST用户名和密码$username=$_POST['username'];$password=$_POST['password'];//查看表user用户名是否存在或为空$sql_select = "SELECT * FROM user WHERE username = '$username'";//result必需规定由 mysqli_query()、mysqli_store_result() 或 mysqli_use_result() 返回的结果集标识符。$select = mysqli_query($link,$sql_select);$num = mysqli_num_rows($select);//函数返回结果集中行的数量if($username == "" || $password == ""){echo "请确认信息完整性";}else if($num){echo "已存在用户名";//已存在账户名输出错误}else{$sql="insert into user(username,password) values('$username','$password')";$result=mysqli_query($link,$sql);//判断是否注册后显示内容if(!$result){echo "注册不成功！"."<br>";//输出错误echo "<a href='index.php'>返回</a>";//超链接到首页}else{echo "注册成功!"."<br/>";//输出成功echo "<a href='index.hphp'>立刻登录</a>";//超链接到首页}}?>最后附上本文用到的mysql表
以上就是一个简单的PHP注册登录页面了~
非常感谢大家的关注支持~
关于报错：
Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given in
的处理请点击 这里进入
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