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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 |
|---|---|
| 21 | |
| 22 | update_blog_details( $site_id, array( 'last_updated' => current_time( 'mysql', true ) ) ); |
| 23 | /** |
| 24 | * Fires after the blog details are updated. |
| 25 | * |
| 26 | * @since MU (3.0.0) |
| 27 | * |
| 28 | * @param int $blog_id Site ID. |
| 29 | */ |
| 30 | do_action( 'wpmu_blog_updated', $site_id ); |
| 31 | } |
| 32 | |
| 33 | /** |
| 34 | * Get a full blog URL, given a blog id. |
| 35 | * |
| 36 | * @since MU (3.0.0) |
| 37 | * |
| 38 | * @param int $blog_id Blog ID |
| 39 | * @return string Full URL of the blog if found. Empty string if not. |