php简单登录注册验证
列表页
<?php
//连接数据库
$db = new MySQLi('localhost','root','','z_1032');
!mysqli_connect_error() or die('连接失败');
$db->query('set names utf8');
//判断修改状态
if(!empty($_GET['id'])){
$sno = $_GET['id'];
$sql = "update student set status = 1 where sno = '$sno'";
$res = $db->query($sql);
}
//查数据
$sql = "select * from student where status >= 0";
$res = $db->query($sql);
$arr = $res->fetch_all();
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>列表页</title>
<style>
.spanErr{
background: red;
cursor: pointer;
}
.spanSu{
background: green;
cursor: pointer;
}
</style>
</head>
<body>
<table width="100%" cellpadding="0" cellspacing="0">
<tr>
<th>学号</th>
<th>姓名</th>
<th>性别</th>
<th>生日</th>
<th>班级</th>
<th>操作</th>
</tr>
<!-- 循环添加数据-->
<?php foreach($arr as $v) { ?>
<tr>
<td><?php echo $v[0]; ?></td>
<td><?php echo $v[1]; ?></td>
<td><?php echo $v[2]; ?></td>
<td><?php echo $v[3]; ?></td>
<td><?php echo $v[4]; ?></td>
<td><?php echo $v[5]==0 ? "<a href='list.php?><span class='spanErr'>未审核</span></a>" : '<span class="spanSu">已通过</span>'; ?></td>
<!-- a标签传值，把sno传过去，判断哪个的状态修改 -->
</tr>
<?php } ?>
</table>
</body>
</html>
登录页
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>登录页</title>
</head>
<body>
<form action="php.php" method="post">
账号： <input type="text" name="sname"><br>
密码： <input type="text" name="sno"><br>
<button>登录</button>
<a href="zhuce.php">注册</a>
</form>
</body>
</html>
注册页
<?php
if(!empty($sno)){
//连接数据库
$db = new MySQLi('localhost','root','','z_1032');
!mysqli_connect_error() or die('连接失败');
$db->query('set names utf8');
//接收值
$sno = $_POST['sno'];
$sname = $_POST['sname'];
$ssex = $_POST['ssex'];
$sbirthday = $_POST['sbirthday'];
$class = $_POST['class'];
//执行sql
$sql = "insert into student values ('$sno','$sname','$ssex','$sbirthday','$class',0)";
$res = $db->query($sql);
if($res){
echo "注册成功";
}else{
echo "注册失败";
}
}
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>注册页</title>
</head>
<body>
<form action="#" method="post">
学号： <input type="text" name="sno"><br>
姓名： <input type="text" name="sname"><br>
性别： <input type="text" name="ssex"><br>
生日： <input type="text" name="sbirthday"><br>
班级： <input type="text" name="class"><br>
<button>注册</button>
<a href="list.php">查看用户列表</a>
</form>
</body>
</html>
后台页
<?php
//连接数据库
$db = new MySQLi('localhost','root','','z_1032');
!mysqli_connect_error() or die('连接失败');
$db->query('set names utf8');
//接收数据
$sname = $_POST['sname'];//账号
$sno = $_POST['sno'];//密码
//查询 审核状态为通过或者是管理员
$sql = "select sno from student where sname = $sname and status != 0";
$res = $db->query($sql);
$arr = $res->fetch_row(); //结果集专数组， 结果是一维数组
//判断给出结果
if($sno != '' && $arr == ''){
echo "账号密码错误或者未通过审核";
}else{
echo "登录成功";
}
?>