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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 |
|---|---|
| 186 | |
| 187 | /** |
| 188 | * Fires once a site has been updated in the database. |
| 189 | * |
| 190 | * @since 5.1.0 |
| 191 | * |
| 192 | * @param WP_Site $new_site New site object. |
| 193 | * @param WP_Site $old_site Old site object. |
| 194 | */ |
| 195 | do_action( 'wp_update_site', $new_site, $old_site ); |
| 196 | |
| 197 | return (int) $new_site->id; |
| 198 | } |
| 199 | |
| 200 | /** |
| 201 | * Deletes a site from the database. |
| 202 | * |
| 203 | * @since 5.1.0 |
| 204 | * |