Advanced Caching Options

Advanced settings – exclude URLs

To excude an URL from your cache, add its path to the “List URLs that should not be cached” field. Eg. if you want to exclude http://my-website.com/my-page, insert /my-page

Use of wildcards:

You can use * wildcards to match several pages. For example, /shop/* will exclude all pages with /shop at the beginning of their path. You can also use 2 * to exclude a page containing a string anywhere in its path. Eg. entering *shop* will exclude http://my-website.com/shop as well as http://my-website.com/about-the-shop-and-more

Extending the page cache

Adding custom cache extensions

• First, choose a location to store your code. Set the constant WPO_CACHE_CUSTOM_EXT_DIR in your site’s wp-config.php. For example:
  define( 'WPO_CACHE_CUSTOM_EXT_DIR', ABSPATH . '/path/to/cache/extensions' );
• Create a php file in this location, and add your code.
• If you have the premium version, you can look in wp-optimize/cache/extensions for examples.

Overriding existing extensions

If your version of WP-Optimize comes with bundled extensions, you can override them. To do so, you need to copy them somewhere outside of WP-Optimize’s folder, to prevent them from being overridden when updating the plugin:

• Copy the folder wp-optimize/cache/extensions to a custom location
• In your site’s wp-config.php, define the constant WPO_CACHE_EXT_DIR with the folder you chose to copy the default extensions to. For example:
  define( 'WPO_CACHE_EXT_DIR', ABSPATH . '/path/to/default/cache/extensions' );
• There you can override the extensions, and your changes will be kept when WP-Optimize will be updated.
• You can also add your own extensions in this folder, without the need to use the extra WPO_CACHE_CUSTOM_EXT_DIR method.

Purging the cache from an other plugin or theme

You can trigger a cache purge using WP-Optimize public functions.

Use WP_Optimize()->get_page_cache()->purge(); to flush the whole cache.

Use WPO_Page_Cache::delete_single_post_cache($post_id); to purge a single post’s files.

Those cache options are available from WordPress action plugins_loaded.