Solar_Cache_Adapter_Session::add()
    public
    bool
     Solar_Cache_Adapter_Session::add 
         ( string  $key
        , mixed  $data
        , int  $life  = NULL
    
 )
Inserts cache entry data, but only if the entry does not already exist.
Parameters
- (string) - $key: The entry ID.
- (mixed) - $data: The data to write into the entry.
- (int) - $life: A custom lifespan, in seconds, for the entry; if null, uses the default lifespan for the adapter instance.
Returns
- (bool) True on success, false on failure. 
Description
Inserts cache entry data, but only if the entry does not already exist.