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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 |
|---|---|
| 1251 | * Filter the list of blogs a user belongs to. |
| 1252 | * |
| 1253 | * @since MU |
| 1254 | * |
| 1255 | * @param array $blogs An array of blog objects belonging to the user. |
| 1256 | * @param int $user_id User ID. |
| 1257 | * @param bool $all Whether the returned blogs array should contain all blogs, including |
| 1258 | * those marked 'deleted', 'archived', or 'spam'. Default false. |
| 1259 | */ |
| 1260 | return apply_filters( 'get_blogs_of_user', $blogs, $user_id, $all ); |
| 1261 | } |
| 1262 | |
| 1263 | /** |
| 1264 | * Find out whether a user is a member of a given blog. |
| 1265 | * |
| 1266 | * @since MU 1.1 |
| 1267 | * |
| 1268 | * @param int $user_id Optional. The unique ID of the user. Defaults to the current user. |
| 1269 | * @param int $blog_id Optional. ID of the blog to check. Defaults to the current site. |