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php 实现一页显示10条记录

2012-05-24 15:15 323 查看

现在已经在实习了，抱着学习的态度，当初选择了一点都没有概念的php和mysql管理。一切从零开始吧，幸亏办公室里面有大牛在，所以又问题就直接可以请教他。大牛布置任务说，做一个新闻管理平台，哎……才学了10多天，而且只看看书的人，看了html,xhtml,css,xml,javascrip,jquery,php,mysql，你们应该就知道我是什么基础了，好不容易写了点东西，然后大牛要有提高的，显示的时候，不能再一个网页里面打印全部的东西，要每页打印一定的条数，所以……代码如下：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<!--
Design by Free CSS Templates http://www.freecsstemplates.org Released for free under a Creative Commons Attribution 2.5 License

Name       : Natures Charm
Description: A two-column, fixed-width design.
Version    : 1.0
Released   : 20080125

-->

<html xmlns="http://www.w3.org/1999/xhtml"><!-- 使用命名空间 -->
<head>
<meta http-equiv="content-type" content="text/html; charset=gbk" />
<title>新闻管理平台</title>
<meta name="keywords" content="" />
<meta name="description" content="" />
<link href="default.css" rel="stylesheet" type="text/css" media="screen" />
<script type="text/javascript" src="../jquery/jquery.js" tppabs="http://www.w3school.com.cn/jquery/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){	//这是为了防止文档在完全加载（就绪）之前运行 jQuery 代码
$(".flip").click(function(){
$(".panel").slideToggle("slow");
});
});
</script>
</head>
<body>
<!-- start header -->
<div id="header">
<div id="logo">
<h1>新闻管理平台 </h1>			 <!-- 锚 URL - 指向页面中的锚（href="#top"） -->
</div>
<div id="menu">
<ul>
<li ><a href="./index.html" accesskey="1" title="点击回到首页">首页</a></li>
<li><a href="./create_news.html" accesskey="2" title="">创建新闻</a></li>
<li><a href="./search_news.html" accesskey="3" title="">查找新闻</a></li>
<li><a href="#" accesskey="4" title="">编辑新闻</a></li>
<li class="active"><a href="./browse_news.php" accesskey="5" title="">浏览新闻</a></li>
</ul>
</div>
</div>

<div id=search_news_3>
<?php
// create short variable names

function page_select($num,$page_num)
{
echo '    <select onchange="location.href=\'browse_news.php?page=\'+this.value" name="page_select" size=1 style="font-size:12px">';
for($i=1;$i<=$num;$i++)
{
if($i==$page_num)
echo "<option value='".$i."' selected>$i</option>";
else
echo "<option value='".$i."'>$i</option>";
}
echo '</select>';
}
$page_num=$_GET['page'];
if(!$page_num)
{
$page_num = 1;
}

@ $db = new mysqli('localhost', 'news_author01', '123456',  'manage_news');
$db->set_charset('GBK');//关键呀

if (mysqli_connect_errno())
{
echo 'Error: Could not connect to database.  Please try again later.';
}
$query = "select count(*) from manage_news";
$result = $db->query($query);
$row = $result->fetch_array();
$num_results = $row[0];
$page_total=(integer)(($num_results+9)/10);

echo '<p>共'.$page_num.'页/每页10条   共'.$num_results.'个条新闻。</p>';
if($page_total>$page_num )
{
if($page_num>1)
{
echo '<a href="./browse_news.php?page='.($page_num-1).'">上一页</a>';
echo " "."$page_num".'/'."$page_total"." ";
echo '<a href="./browse_news.php?page='.($page_num+1).'">下一页</a>';
if (($num_results-($page_num-1)*10)<10)
{
$print_line = $num_results-$page_num*10;
}
else
{
$print_line = 10;
}
}
else
{
echo '上一页';
echo " "."$page_num".'/'."$page_total"." ";
echo '<a href="./browse_news.php?page='.($page_num+1).'">下一页</a>';
$print_line = 10;
}
}
else
{
if($page_total==1)
{
echo '上一页';
echo " "."$page_num".'/'."$page_total"." ";
echo '下一页';
$print_line = $num_results;
}
else
{
echo '<a href="./browse_news.php?page='.($page_num-1).'">上一页</a>';
echo " "."$page_num".'/'."$page_total"." ";
echo '下一页';

$print_line = $num_results-($page_num-1)*10;
}
}
page_select($page_total,$page_num);

echo '<div id=search_news_4>';
echo '<table width="100%">';

$query = "select * from manage_news limit ".(($page_num-1)*10).",10";
$result = $db->query($query);

for ($i=($page_num-1)*10; $i <$print_line+($page_num-1)*10; $i++)
{
$row = $result->fetch_assoc();//将每一行的相关
$temp = $row['id'];
echo '<tr width="100%" valign="baseline"><td align="left" width="75%">';
echo "<font size='5'  color='aqua'>".'<p><strong>'.($i+1).'. ';
echo "<a href='./show_detail.php?id=$temp'>";
echo htmlspecialchars(stripslashes($row['title']));
//$_REQUEST['']
echo "</a>";
echo "<font size='4'  color='DarkGray'>".'      ID:';
echo stripslashes($row['id']);
echo '<br />作者：';
echo stripslashes($row['author']);
echo '<font size=2>';
echo '<br />发布时间：';
echo stripslashes($row['time']).'   最后修改时间:'.stripslashes($row['last_time']).'</font></font></font>';
echo "</td>";
echo '<td width="25%" align="right" valign="baseline">';//与基线对齐
echo "<a href='./delete_news.php?id=".stripslashes($row['id'])."'>[删除]</a> ";
echo "<a href='./edit_news.php?id=".stripslashes($row['id'])."'>[编辑]</a>";
echo "</td></tr>";
}
echo '</table>';

echo '</div>';
$result->free();
$db->close();

?>
</div>

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<p>Because time is valuable, we deliver quick and easy learning.</p>
<p>At W3School, you can study everything you need to learn, in an accessible and handy format.</p>
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<p class="flip">详情 >></p> -->

<div style="clear: both; height: 30px"> </div>
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<div id="footer">
<p>©2007 All Rights Reserved.  •  Designed by <a href="http://www.freecsstemplates.org/">Free CSS Templates</a></p>
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</body>
</html>

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php 实现 一页显示10条记录

php 实现一页显示10条记录