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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 |
|---|---|
| 55 | $add_user_errors = new WP_Error( 'add_user_fail', __( 'Cannot add user.' ) ); |
| 56 | } else { |
| 57 | /** |
| 58 | * Fires after a new user has been created via the network user-new.php page. |
| 59 | * |
| 60 | * @since 4.4.0 |
| 61 | * |
| 62 | * @param int $user_id ID of the newly created user. |
| 63 | */ |
| 64 | do_action( 'network_user_new_created_user', $user_id ); |
| 65 | |
| 66 | wp_redirect( |
| 67 | add_query_arg( |
| 68 | array( |
| 69 | 'update' => 'added', |
| 70 | 'user_id' => $user_id, |
| 71 | ), |
| 72 | 'user-new.php' |
| 73 | ) |