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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 |
|---|---|
| 930 | } |
| 931 | |
| 932 | /** |
| 933 | * Fires before the user is granted Super Admin privileges. |
| 934 | * |
| 935 | * @since 3.0.0 |
| 936 | * |
| 937 | * @param int $user_id ID of the user that is about to be granted Super Admin privileges. |
| 938 | */ |
| 939 | do_action( 'grant_super_admin', $user_id ); |
| 940 | |
| 941 | // Directly fetch site_admins instead of using get_super_admins(). |
| 942 | $super_admins = get_site_option( 'site_admins', array( 'admin' ) ); |
| 943 | |
| 944 | $user = get_userdata( $user_id ); |
| 945 | if ( $user && ! in_array( $user->user_login, $super_admins, true ) ) { |
| 946 | $super_admins[] = $user->user_login; |
| 947 | update_site_option( 'site_admins', $super_admins ); |
| 948 | |