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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 |
|---|---|
| 839 | } |
| 840 | |
| 841 | /** |
| 842 | * Fires before the user is granted Super Admin privileges. |
| 843 | * |
| 844 | * @since 3.0.0 |
| 845 | * |
| 846 | * @param int $user_id ID of the user that is about to be granted Super Admin privileges. |
| 847 | */ |
| 848 | do_action( 'grant_super_admin', $user_id ); |
| 849 | |
| 850 | // Directly fetch site_admins instead of using get_super_admins() |
| 851 | $super_admins = get_site_option( 'site_admins', array( 'admin' ) ); |
| 852 | |
| 853 | $user = get_userdata( $user_id ); |
| 854 | if ( $user && ! in_array( $user->user_login, $super_admins ) ) { |
| 855 | $super_admins[] = $user->user_login; |
| 856 | update_site_option( 'site_admins' , $super_admins ); |
| 857 | |