Cache (object cache) (category)
| _prime_post_caches() | Adds the specified posts to the object cache. Posts that are already in the cache are skipped. Also creates a related cache of terms and metadata. |
| clean_comment_cache() | Deletes the object cache of the specified comment. |
| clean_post_cache() | Deletes the object cache of the post by the given ID. The cache of terms and child posts will also be deleted. |
| wp_cache_add() | Adds data to the cache if there is no cache with the specified key yet. |
| wp_cache_add_global_groups() | Adds the specified object cache group to the list of global groups. Needed for multisite. |
| wp_cache_add_non_persistent_groups() | Marks the specified group/groups as non-persistent cache, i.e., which does not need to be saved for inter-session use. |
| wp_cache_decr() | Decrements the value of the numeric cache item with the specified key and group. |
| wp_cache_delete() | Deletes the cache by the specified key and group. |
| wp_cache_flush() | Completely clears the object cache. Deletes all items in the object cache. |
| wp_cache_flush_runtime() | Completely clears the object cache only if it is stored in memory (persistent caching is not used). With persistent caching, it does nothing. |
| wp_cache_get() | Retrieves the object cache data by specified cache key and group. |
| wp_cache_get_last_changed() | Gets the timestamp of the last modification of the specified object cache group. |
| wp_cache_incr() | Increments the value of the numeric cache item with the specified cache key and group. |
| wp_cache_replace() | Replaces/updates the data of the specified cache only if the cache already exists; otherwise, it does nothing (will return false). |
| wp_cache_set() | Saves the data to the object cache. If data with this key already exists, it will be overwritten. |
| wp_clean_update_cache() | Deletes data about plugin, theme, and core updates from the cache. |
| wp_defer_term_counting() | Allows deferring the count of posts for a term (taxonomy element). |
| wp_suspend_cache_addition() | Temporarily suspends the addition of objects to the object cache. |
| wp_suspend_cache_invalidation() | Suspends the deletion/resetting of cache objects. |
| wp_using_ext_object_cache() | Checks if the plugin (additional code) for persistent object caching is enabled. |