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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 |
|---|---|
| 579 | * Filter the list of blogs a user belongs to. |
| 580 | * |
| 581 | * @since MU |
| 582 | * |
| 583 | * @param array $blogs An array of blog objects belonging to the user. |
| 584 | * @param int $user_id User ID. |
| 585 | * @param bool $all Whether the returned blogs array should contain all blogs, including |
| 586 | * those marked 'deleted', 'archived', or 'spam'. Default false. |
| 587 | */ |
| 588 | return apply_filters( 'get_blogs_of_user', $blogs, $user_id, $all ); |
| 589 | } |
| 590 | |
| 591 | /** |
| 592 | * Find out whether a user is a member of a given blog. |
| 593 | * |
| 594 | * @since MU 1.1 |
| 595 | * |
| 596 | * @param int $user_id Optional. The unique ID of the user. Defaults to the current user. |
| 597 | * @param int $blog_id Optional. ID of the blog to check. Defaults to the current site. |