FlyingPress provides simple PHP functions to purge and preload the cache directly from your code. This is useful for triggering cache operations during custom workflows, integrations, or admin tools.
These functions are available under the FlyingPress namespace.
Where to use
You can call these functions from:
A custom plugin
Theme code (e.g.,
functions.php)Admin actions, cron jobs, or custom hooks
Make sure FlyingPress is active when calling these methods.
Purging Cache
Purge multiple URLs/pages
FlyingPress\Purge::purge_urls([
'https://example.com/page-1/',
'https://example.com/page-2/',
]);
$urlsmust be an array of absolute URLsEach URL is purged individually
Purge all cached HTML pages
FlyingPress\Purge::purge_pages();
Clears all HTML page cache
Does not remove other cached files (e.g., fonts, static assets)
Purge everything (entire cache folder)
FlyingPress\Purge::purge_everything();
Deletes the entire FlyingPress cache folder
Recreates the cache directory after deletion
Preloading Cache
Preload a single URL/page
FlyingPress\Preload::preload_url('https://example.com/page/');Preload multiple URLs/pages
FlyingPress\Preload::preload_urls([
'https://example.com/page-1/',
'https://example.com/page-2/',
]);
Each URL is queued and fetched for pre-caching
Preload all URLs
FlyingPress\Preload::preload_cache();
Uses FlyingPress’s default logic to determine which URLs to preload
Includes homepage, posts, pages, taxonomies, etc.
Notes
Preloading and purging are non-blocking—they can be safely used in hooks
Always pass fully qualified URLs (including protocol and trailing slash)
Use these functions only when needed to avoid unnecessary resource usage