^_^ hello i am building a CMS as a wee project and have ran up against a problem. I am using Jpmaster77's login system and have built a templateing engine around it and with the aid of a few tutorials.
Problem is i don't know how to make the engine not cache some areas, i have managed to spit the page up for different cache expires but not to not cache areas completely which kinda messes up the login as its trying to send template data that is well empty.
Would appreciate a once over on this maybe someone can help with a switch in the class to not cache the page.
Here is a link to the project link
Full source code link
And here is the class
and here is index.php
Oh my thinking is to do something like
if (isset($nocache))
{
$content=&new templateParser($content_tags,'./include/style/'.$site['theme'].'/content.tpl.htm');
}
else
{
$content=&new templateParser($content_tags,'cache/cache_content_'.$page.''.$subpage.'.txt',$cache_expire,'./include/style/'.$site['theme'].'/content.tpl.htm');
}
Problem is i don't know how to make the engine not cache some areas, i have managed to spit the page up for different cache expires but not to not cache areas completely which kinda messes up the login as its trying to send template data that is well empty.
Would appreciate a once over on this maybe someone can help with a switch in the class to not cache the page.
Here is a link to the project link
Full source code link
And here is the class
PHP:
<?php
/************************************************************************************
Kittenbunny CMS
Template Engine
Openkitten licence free for all
************************************************************************************/
// Prevent direct access to file //
if(eregi(basename(__FILE__),$_SERVER['REQUEST_URI']))
die('Direct access prohibited');
class templateParser
{
// Set the output variable
var $output;
// function to set the template and cache file
function templateParser($tags=array(),$cacheFile='default_cache.txt',$expireTime=3600,
$templateFile='default_template.htm')
{
if(!$this->output=$this->readCache($cacheFile,$expireTime))
{
(file_exists($templateFile))?$this->output=file_get_contents($templateFile)
:die
('Error:Template file '.$templateFile.' not found');
$this->parseTemplate($tags,$cacheFile);
}
}
// Function to sent the content to the template
function parseTemplate($tags,$cacheFile)
{
if(count($tags)>0)
{
foreach($tags as $tag=>$data)
{
$data=(file_exists($data))?$this->parseFile($data):$data;
$this->output=str_replace('{'.$tag.'}',$data,$this->output);
}
$this->writeCache($cacheFile,$this->output);
}
else
{
die('Error: No tags or files were provided for replacement');
}
}
function parseFile($file)
{
ob_start();
include($file);
$content=ob_get_contents();
ob_end_clean();
return $content;
}
function writeCache($cacheFile,$content)
{
$fp=fopen($cacheFile,'w');
fwrite($fp,$content);
fclose($fp);
}
function readCache($cacheFile,$expireTime)
{
if (file_exists($cacheFile) && filemtime($cacheFile)>(time()-$expireTime))
{
return file_get_contents($cacheFile);
}
return false;
}
function display()
{
return $this->output;
}
}
?>and here is index.php
PHP:
<?php
/************************************************************************************
Kittenbunny CMS
Main page
************************************************************************************/
//************************* Include Classes ************************************//
// include the session
include("./include/settings/session.php");
// include template parser class //
require_once('./include/style/template.php');
//************************* Site Settings ************************************//
// Connect to site details table
$sql= "SELECT `master`, `theme`, `description`, `keywords`, `abstract`, `title`, `sub_title` FROM `tbl_site-details` LIMIT 1";
$result = mysql_query($sql) or die("Sorry there seems to be a problem with the database.");
$settings = mysql_fetch_array($result);
// Selected Theme
$site['theme'] = $settings['theme'];
// Meta Data
$meta['description'] = $settings['description'];
$meta['keywords'] = $settings['keywords'];
$meta['author'] = $settings['master'];
$meta['abstract'] = $settings['abstract'];
// Header Title
$site['title'] = $settings['title'];
//************************* Page location ************************************//
include('include/settings/active_modules.php');
// Server document root //
$self = '\../';
// define class parameters for header //
$header_tags=array
(
// Site information //
// Site webmaster //
'webmaster'=>$meta['author'],
// Site description //
'description'=>$meta['description'],
// Site webmaster //
'keywords'=>$meta['keywords'],
// Site abstract //
'abstract'=>$meta['abstract'],
// Page location //
'self'=>$self,
// Page content //
// Page title //
'title'=>$title,
// Page Header //
'header'=>'./include/style/header.php'
);
// define class parameters for navagation //
$navagation_tags=array
(
// Primary Navagation bar //
'main_nav'=>'./include/style/main_nav.php',
// Secondary tier Navagation bar //
'sub_nav'=>'./include/style/sub_nav.php'
);
// define class parameters for navagation //
$sidebar_tags=array
(
// Left block //
'leftcontent'=>'./include/style/leftcontent.php'
);
// define class parameters for navagation //
$content_tags=array
(
// Page contents
'maincontent'=>$module
);
// define class parameters for navagation //
$footer_tags=array
(
// Page Footer //
'footer'=>'./include/style/footer.php'
);
// instantiate a new template parser object specifying a cache file valid for 2 hours //
$header=&new templateParser($header_tags,'cache/cache_header_'.$page.'.txt',2*0,'./include/style/'.$site['theme'].'/header.tpl.htm');
$navagation=&new templateParser($navagation_tags,'cache/cache_navagation_'.$page.'.txt',2*0,'./include/style/'.$site['theme'].'/navagation.tpl.htm');
// Session logged in //
$side_bar=&new templateParser($sidebar_tags,'cache/cache_sidebar_'.$page.'.txt',2*0,'./include/style/'.$site['theme'].'/sidebar.tpl.htm');
$content=&new templateParser($content_tags,'cache/cache_content_'.$page.''.$subpage.'.txt',$cache_expire,'./include/style/'.$site['theme'].'/content.tpl.htm');
$footer=&new templateParser($footer_tags,'cache/cache_footer.txt',2*0,'./include/style/'.$site['theme'].'/footer.tpl.htm');
//*************************** display finished page ******************************//
// Page header //
echo $header->display();
// Navagation Bar //
echo $navagation->display();
// Content area //
echo $content->display();
// Side bar //
echo $side_bar->display();
// footer //
echo $footer->display();
?>Oh my thinking is to do something like
if (isset($nocache))
{
$content=&new templateParser($content_tags,'./include/style/'.$site['theme'].'/content.tpl.htm');
}
else
{
$content=&new templateParser($content_tags,'cache/cache_content_'.$page.''.$subpage.'.txt',$cache_expire,'./include/style/'.$site['theme'].'/content.tpl.htm');
}