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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 |
---|---|
651 | * Filter the list of blogs a user belongs to. |
652 | * |
653 | * @since MU |
654 | * |
655 | * @param array $blogs An array of blog objects belonging to the user. |
656 | * @param int $user_id User ID. |
657 | * @param bool $all Whether the returned blogs array should contain all blogs, including |
658 | * those marked 'deleted', 'archived', or 'spam'. Default false. |
659 | */ |
660 | return apply_filters( 'get_blogs_of_user', $blogs, $user_id, $all ); |
661 | } |
662 |
|
663 | /** |
664 | * Find out whether a user is a member of a given blog. |
665 | * |
666 | * @since MU 1.1 |
667 | * |
668 | * @param int $user_id Optional. The unique ID of the user. Defaults to the current user. |
669 | * @param int $blog_id Optional. ID of the blog to check. Defaults to the current site. |