WordPress Object Cache and ENABLE_CACHE
An article by Jeff Starr suggests that to benefit from WordPress’ native caching capabilities, that
define('ENABLE_CACHE', TRUE); should be included in the
wp-config.php file. There also appear to be similar gists that allude to using
define('WP_CACHE', true); and
In an attempt to understand these better, there appears to be little to no information on the use of these declarations.
- Are these necessary?
- How do these improve the performance of a WordPress site?
- Are there any downsides on using these?