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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 |
|---|---|
| 243 | clean_blog_cache( $old_site ); |
| 244 | |
| 245 | /** |
| 246 | * Fires once a site has been deleted from the database. |
| 247 | * |
| 248 | * @since 5.1.0 |
| 249 | * |
| 250 | * @param WP_Site $old_site Deleted site object. |
| 251 | */ |
| 252 | do_action( 'wp_delete_site', $old_site ); |
| 253 | |
| 254 | /** |
| 255 | * Fires after the site is deleted from the network. |
| 256 | * |
| 257 | * @since 4.8.0 |
| 258 | * @deprecated 5.1.0 |
| 259 | * |
| 260 | * @param int $site_id The site ID. |
| 261 | * @param bool $drop True if site's tables should be dropped. Default is false. |