Persistent caching using files. WARNING: PHP 5.1.6 or newer is required. DOES NOT support WordPress MultiSite.
There is one magic constant,
ini_get('memory_limit') - memory_get_usage() becomes less than
WP_FILE_CACHE_LOW_RAM, caching gets partially disabled.
This means that the data that are available in the memory cache will still be used but no reads from the files will be performed. This can be useful when you get Out of Memory errors in
By default this feature is turned off but you can enable it with defining
4M with your value.
wp-contentdirectory is writable by the web server: the plugin will need to delete
wp-content/object-cache.phpfile was removed.