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Doctrine\DBAL\Statement can automatically cache result sets.
For this to work an instance of
Doctrine\Common\Cache\Cache must be provided.
This can be set on the configuration object (optionally it can also be passed at query time):
To get the result set of a query cached it is necessary to pass a
Doctrine\DBAL\Cache\QueryCacheProfile instance to the
instance. The difference between these two methods is that the former does not
require this instance, while the later has this instance as a required parameter:
It is also possible to pass in a
Doctrine\Common\Cache\Cache instance into the
Doctrine\DBAL\Cache\QueryCacheProfile in which case it overrides
the default cache instance:
In order for the data to actually be cached its necessary to ensure that the entire
result set is read (the easiest way to ensure this is to use
fetchAll) and the statement
object is closed:
When using the cache layer not all fetch modes are supported. See the code of the ResultCacheStatement for details.