cache.php

<?php
$useCache = true;
if ($useCache){
	if (isset($_SERVER['REQUEST_URI']) && $_SERVER['REQUEST_URI']!="/"){
		$cacheName=str_replace('/','-',$_SERVER['REQUEST_URI']);
		$cacheName = substr($cacheName,1);
	}else{
		$cacheName='site-index.html'; 
	}
	$cacheFile = "cache/{$cacheName}";
	if(!isset($cacheTime)){
		$cacheTime = 4 * 60;
	}
	if (file_exists($cacheFile) && time() - $cacheTime < filemtime($cacheFile)) {
		include($cacheFile);
		exit;
	}
	ob_start();
}
?>
	 
<!-- Content to be cached -->
	 
<?php	 
if ($useCache){
	file_put_contents($cacheFile, ob_get_contents());
	ob_end_flush();
}
?>