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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 3624 | /** |
| 3625 | * Filters the persistent object cache services available to the user. |
| 3626 | * |
| 3627 | * This can be useful to hide or add services not included in the defaults. |
| 3628 | * |
| 3629 | * @since 6.1.0 |
| 3630 | * |
| 3631 | * @param string[] $services The list of available persistent object cache services. |
| 3632 | */ |
| 3633 | return apply_filters( 'site_status_available_object_cache_services', $services ); |
| 3634 | } |
| 3635 | } |
| 3636 | |