PHP页面
<?php
//打开输出控制缓冲
ob_start();
//新建模板文件
$file = "./cache/newindex{$_GET[‘page‘]}.html";
$cachetime = 10;
const DSN = ‘mysql:host=localhost;dbname=test‘;
const DBUSER = ‘root‘;
const DBPWD = ‘root‘;
//模板不存在或者超过缓存时间才生成缓存模板
if(!file_exists($file) || filemtime($file)+$cachetime<time()){
//创建smarty对象
require_once ‘./libs/Smarty.class.php‘;
require_once ‘page.class.php‘;
//定义根目录
define(‘ROOT‘, str_replace("\\", "/",dirname(__FILE__))."/");
//实例化Smarty类
$smarty=new Smarty();
//设定定界符
$smarty->left_delimiter="<{";
$smarty->right_delimiter="}>";
//设置为false 定界符号左右可以有空格
$smarty->auto_literal = false;
//添加一个插件的目录
//$smarty->setPluginsDir(ROOT."/libs/myplugins/");
//注意添加一个插件,要把系统默认设置的路径加入 否则不能使用默认系统的插件
$smarty->setPluginsDir(array(
ROOT."/libs/plugins/",//系统默认设置的路径
ROOT."/libs/myplugins/",//自定义的
));
//连接数据库
try{
$pdo = new PDO(DSN, DBUSER,DBPWD);
}catch(PDOException $e){
echo "数据库连接失败:".$e->getMessage();
exit;
}
$query = "select id, username, password,email from users limit 3";
$stmt = $pdo->prepare($query);
$stmt ->execute();
$users = $stmt->fetchAll(PDO::FETCH_ASSOC);
$smarty->assign(‘users‘,$users);
//var_dump($users);
$query = "desc users";
$stmt = $pdo->prepare($query);
$stmt ->execute();
$tdname = $stmt->fetchAll(PDO::FETCH_COLUMN);
//var_dump($tdname);
$page = new Page(20, 2);
$smarty->assign(‘tdname‘,$tdname);
$smarty->assign(‘fpage‘,$page->fpage());
//变量输出
$smarty->display(‘hello.tpl‘);
//返回输出缓冲区的内容
$content = ob_get_contents();
//将一个字符串写入文件
file_put_contents("./cache/newindex{$_GET[‘page‘]}.html", $content);
//冲刷出（送出）输出缓冲区中的内容
ob_flush();
echo "缓存文件不存在,查询数据库，再生成缓存文件，输出到浏览器";
}else{
include $file;
echo "直接加载缓存文件";
}
?>
模板tpl页面
<head>
<meta http-equiv="content-type" content="text/html;charset=utf-8"/>
</head>
<style type="text/css">
</style>
<script type="text/javascript">
function abc(){
}
</script>
<{config_load file="../config/my.conf " section="index"}>
<body bgcolor=‘<{ #bgcolor# }>‘>
<h3><{#title#}></h3>
<table border="1" width="800" align="center">
<caption>用户信息表</caption>
<th align="center">index</th>
<th align="center">iteration</th>
<{foreach $tdname as $val}>
<th align="center"><{$val}></th>
<{/foreach}>
<{section name="one" loop=$users }>
<{if $smarty.section.one.first}>
<tr bgcolor="red" align="center">
<{elseif $smarty.section.one.last}>
<tr bgcolor="yellow" align="center">
<{elseif $smarty.section.one.iteration is even}>
<tr bgcolor="pink" align="center">
<{else}>
<tr bgcolor="green" align="center">
<{/if}>
<td><{$smarty.section.one.index}></td>
<td><{$smarty.section.one.iteration}></td>
<td><{$users[one].id}></td>
<td><{$users[one].username}></td>
<td><{$users[one].password}></td>
<td><{$users[one].email}></td>
</tr>
<{sectionelse}>
没有用户查询出来！
<{/section}>
<tfoot><tr><td colspan="6" align="center">
<{$fpage}>
</td></tr></tfoot>
</table>
</body>
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时间： 2024-08-11 07:44:29