get_hkey()

Get tree root ID of a child via SQL. Alternative function to get_root().

get_hkey( string $db, string $id_col, string $cat_col, int $current_id ) : int

Parameters

$db (string) (Required) Table name.

$id_col (string) (Required) ID column.

$cat_col (string) (Required) Category column.

$current_id (string) (Required) The current id of the item.

Return Values

(int)

Examples

$root = get_hkey(DB_NEWS_CATS, 'news_cat_id', 'news_cat_parent', 1);
// 1