Caching of data

[snuswdk]

Hi, 

 

We have created some custom pages, where we are forced to run a lot of sql statements. 

The data can be cached for a couple of days or untill we clear the cache. 

 

My prolem is it don't store the cache. Everytime the funciton Cache::isStored returns false.

$cache_id = "test";
if (Cache::isStored($cache_id)) {
   /// Query data
   Cache::store($cache_id, $data);
}

$data = Cache::retrieve($cache_id);
echo json_encode($data);

I think I uses the cache function wrong. But I can seem to find any documentation for it.