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<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>上下页、首页、尾页</title>
<style type="text/css">
table,th,td {
border:1px solid black;
}
table th{
background-color:gray;
}
table {
border-collapse:collapse;
width:70%;
margin:30px auto;
text-align: center;
}
div {
text-align: center;
}
div a {
text-decoration: none;
margin-left:10px;
}
div a:hover, .active {
background-color: gray;
color:white;
}
form {
display: inline;
}
</style>
</head>
<body>
<?php
$db = mysqli_connect('127.0.0.1','root','root');
mysqli_select_db($db,'php');
$num = 5;
$page = isset($_GET['p']) ? $_GET['p'] : 1;
$offset = ($page -1) * $num;
$sql = "SELECT * FROM staff LIMIT {$offset},{$num}";
$res = mysqli_query($db,$sql);
$rows = mysqli_fetch_all($res,MYSQLI_ASSOC);
$number = mysqli_query($db,"SELECT COUNT(*) FROM staff");
list($total) = mysqli_fetch_row($number);
$pages = ceil($total / $num);
?>
<table>
<caption><h2>员工信息表</h2></caption>
<tr>
<th>ID</th>
<th>姓名</th>
<th>性别</th>
<th>年龄</th>
<th>工资</th>
</tr>
<?php foreach ($rows as $row): ?>
<tr>
<td><?php echo $row['staff_id'] ?></td>
<td><?php echo $row['name'] ?></td>
<td><?php echo $row['sex'] ?></td>
<td><?php echo $row['age'] ?></td>
<td><?php echo $row['salary'] ?></td>
</tr>
<?php endforeach;?>
</table>
<div>
<?php if($page !=1): ?>
<a href="http://127.0.0.1/front/0427/demo4.php?p=1">首页</a>
<a href="http://127.0.0.1/front/0427/demo4.php?p=
<?php echo (($page-1)==0) ? 1: ($page-1);
?>
">上一页</a><?php endif; ?>
<?php for($i=1; $i<=$pages; $i++): ?>
<a class="<?php if($page == $i) echo 'active'; ?>" href="http://127.0.0.1/front/0427/demo4.php?p=<?php echo $i; ?>"><?php echo $i; ?></a>
<?php endfor?>
<?php if($page !=$pages): ?>
<a href="http://127.0.0.1/front/0427/demo4.php?p=
<?php echo (($page+1)>$pages) ? $pages : ($page+1);
?>
">下一页</a>
<a href="http://127.0.0.1/front/0427/demo4.php?p=<?php echo $pages ?>">尾页</a>
<?php endif; ?>
<form action="" method="get">
第
<select name="p" id="">
<?php for($i=1; $i<=$pages; $i++): ?>
<option value="<?php echo $i; ?>" <?php if($page == $i) echo 'selected' ?>><?php echo $i; ?></option>
<?php endfor ?>
</select>
页
<button>提交</button>
</form>
</div>
</body>
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