function plt_hide_oo_cleaner_for_cfdb7_menus() { //Hide the "Settings → OO Cleaner for CFDB7" menu. remove_submenu_page('options-general.php', 'oo-cleaner-for-cfdb7'); } add_action('admin_menu', 'plt_hide_oo_cleaner_for_cfdb7_menus', 11);
Where do I put this code?