include 'connection.php';

$count_sql = 'select count(id) as c from user';

$result = mysqli_query($conn, $count_sql);

$data = mysqli_fetch_assoc($result);

//得到总的用户数

$count = $data['c'];

$page = isset($_GET['page']) ? (int) $_GET['page'] : 1;

/*

if (isset($_GET['page'])) {

    $page = (int) $_GET['page'];

} else {

    $page = 1;

}

 */

//每页显示数

$num = 5;

//得到总页数

$total = ceil($count / $num);

if ($page <= 1) {

    $page = 1;

}

if ($page >= $total) {

    $page = $total;

}

$offset = ($page - 1) * $num;

$sql = "select id,username,createtime,createip from user order by id desc limit $offset , $num";

$result = mysqli_query($conn, $sql);

if ($result && mysqli_num_rows($result)) {

    //存在数据则循环将数据显示出来

    echo '<table width="800" border="1">';

    while ($row = mysqli_fetch_assoc($result)) {

        echo '<tr>';

        echo '<td>' . $row['username'] . '</td>';

        echo '<td>' . date('Y-m-d H:i:s', $row['createtime']) . '</td>';

        echo '<td>' . long2ip($row['createip']) . '</td>';

        echo '<td><a href="edit.php?id=' . $row['id'] . '">编辑用户</a></td>';

        echo '<td><a href="delete.php?id=' . $row['id'] . '">删除用户</a></td>';

        echo '</tr>';

    }

    echo '<tr><td colspan="5"><a href="page.php?page=1">首页</a>  <a href="page.php?page=' . ($page - 1) . '">上一页</a>   <a href="page.php?page=' . ($page + 1) . '">下一页</a>  <a href="page.php?page=' . $total . '">尾页</a>  当前是第 ' . $page . '页  共' . $total . '页 </td></tr>';

    echo '</table>';

} else {

    echo '没有数据';

}

mysqli_close($conn);