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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 |
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469 | /** |
470 | * Fires immediately after a site has been removed from the object cache. |
471 | * |
472 | * @since 4.6.0 |
473 | * |
474 | * @param int $id Blog ID. |
475 | * @param WP_Site $blog Site object. |
476 | * @param string $domain_path_key md5 hash of domain and path. |
477 | */ |
478 | do_action( 'clean_site_cache', $blog_id, $blog, $domain_path_key ); |
479 |
|
480 | wp_cache_set( 'last_changed', microtime(), 'sites' ); |
481 | } |
482 |
|
483 | /** |
484 | * Cleans the site details cache for a site. |
485 | * |
486 | * @since 4.7.4 |
487 | * |