Caching Output in PHP

I wrote the script using a basic class with the intention of simplifying the Cache proccess doing so allows new features to be added without having to deal with complex code.
 
Because we have a identifyer which can be used to check if the "function" is functional or not we can now indicate the current status of the cache function. (using a condtional statement)
 

 
if($cache->start())
 
{
 
// The Cache Is In Use
echo 'Cache Works';
 
} else {
 
// Cache Dosent Work

echo 'Cache Dosent Work';
}