登录页面login.html
<meta charset='UTF-8' />后台管理<form action="login.php" method='REQUEST'>用户名 <input type='text' name='username' /><br />密码 <input type='password' name='password' /><br /><input type='submit' name='submit' value="登录" /><a href="register.html">注册</a></form>
登录处理login.php
<meta charset='utf-8'><?php@$username = $_REQUEST['username']; #用户名@$password = $_REQUEST['password']; #密码$conn = mysqli_connect('localhost','root','root','fuli');$sql = "select * from admin where username='$username' and password='$password'"; #必须使用双引号，解析变量$result = mysqli_query($conn,$sql);$result_array = mysqli_fetch_array($result);if($result_array['username']==$username and $username!='' and $result_array['password']==$password and $password!=''){echo '登录成功';}else{echo '登录失败';}?>
注册页面register.html
<meta charset='UTF-8' />后台管理<form action="register.php" method='REQUEST'>用户名 <input type='text' name='username' /><br />密码 <input type='text' name='password1' /><br />确认密码 <input type='password' name='password2' /><br /><input type='submit' name='submit' value="注册" /></form>
注册处理register.php
<meta charset='utf-8'><?php@$username = $_REQUEST['username']; #用户名@$password1 = $_REQUEST['password1']; #密码@$password2 = $_REQUEST['password2']; #密码$conn = mysqli_connect('localhost','root','root','fuli');$sql = "select * from admin where username='$username'";$result = mysqli_query($conn,$sql);$result_array = mysqli_fetch_array($result);if($username=='' || $password1=='' || $password2==''){echo '请确认信息的完整性！';}else{if($password1 != $password2){echo '密码不一致！';}else{if($result_array){echo '用户名已存在！';}else{$sql_insert = "insert into admin value('$username','$password1')";$result_insert = mysqli_query($conn,$sql_insert);if($result_insert){echo '注册成功';}else{echo '系统繁忙，请稍后！';}}}}?>
