Cache PHP Web Pages

[PHPFAN10]

Hi,

 

I am looking for reliable, effective code to cache one or two of my website webpages. I know there are packages like the pear cache lite but is far beyond my needs and complex in terms of never used pear before etc.

 

I am looking for a good cache class perhaps or a link to a good cache script. Does anyone have any code they would like to share or know of any good cache classes etc?

 

I want to keep it relatively simple if possible.

 

Thanks for any suggestions, help.

PHPLOVER

[Goldeneye]

A fairly simple way would be to use the $_SESSION array. This would ensure that each user would not see a page generated by another user which is useful if have a User-account system.

 

$_SESSION['cache'] = array(
                  'PAGE_NAME' => array(
                            'html' => 'HTML_HERE', 
                            'time' => 'UNIX_TIMESTAMP'
                    )
          );

 

'PAGE_NAME' is just the name of the page the cache is for. So say you had three pages (index.php, about.php, contact.php); each page would have its own element in the $_SESSION['cache'] array:

$_SESSION['cache']['index.php'];
$_SESSION['cache']['about.php']
$_SESSION['cache']['contact.php']

 

$_SESSION['cache']['PAGE_NAME']['time'] would contain the timestamp (from time()) of when the page is generated. This way, you can check on each page load if the cached content is more than X seconds, minutes, or hours old and if it is, then regenerate the HTML.

[PHPFAN10]

Thanks,

 

I have decided for now that i will leave it and instead start learning about pear etc.

 

Thanks

[joshbedo]

hey i was messing around with your idea and started building a class i was wondering if you knew how i could check if current time is greater than or equal to the cached time plus so many minutes

<?php
session_start();
class cache{

private $page;
public $time;
public $currentTime;

public function cachePage($pagename, $time)
{
		$_SESSION['cache'] = array(
				  $pagename => array(
							'html' => $pagename. '.html', 
							'time' => $time
					)
		 );

}
public function getCurrentTime()
{
	$this->currentTime =  date("H:i:s");   
}
public function destroy()
{
	if(isset($_SESSION['cache']))
	{
		unset($_SESSION['cache']);
	}
}
}
//end of class

$cache = new cache;
if(!isset($_SESSION['cache']))
{
	//$cache->getTime();
	$cache->time =  date("H:i:s");
	$cache->cachePage('index', $cache->time);
}
if(isset($_SESSION['cache']))
{
	$cache->currentTime = date("H:i:s");
                //heres where i need help
	if(strtotime($cache->currentTime) >= strtotime("3+ minutes", $cache->time))
	{
		$cache->destroy();
		$cache->time =  date("H:i:s");
		$cache->cachePage('index', $cache->time);
	}
}
print_r($_SESSION['cache']);
echo strtotime($cache->currentTime). '<br/>';
//echo strtotime("3+ minutes", $cache->time);
//$cache->destroy();
//echo $cache->time;
?>
?>

 

was trying to use strtotime("3+ minutes", $this->time) in the if statement but it still wasnt working maybe it was the way i was doing it?