Missing return types in cache

[malthert]

These functions in cache.php are missing the return type (@return void specifically in this case)

wp_cache_init
wp_cache_switch_to_blog
wp_cache_add_global_groups
wp_cache_add_non_persistent_groups

Please add them.

[SergeyBiryukov]

Hi there, thanks for the ticket!

Per the ​WordPress documentation standards, @return void should not be used outside of the default bundled themes, so most of the core functions don't have that tag if the function does not return anything.

There is an exception for functions like wp_title(), which can either return a string or display it, in which case they have @return string|void.

[desrosj]

Closing this out as this does indeed appear to be following the documentation standards.

[SergeyBiryukov]

Just noting that the documentation standards can probably be reconsidered if there is a strong reason and enough interest for allowing @return void in core function DocBlocks (outside of the default bundled themes).

However, that would be a larger effort, as this applies to all of core and not just to cache functions.