====== dbTouch() ======

Each entry in the **Database for Contents** has a timestamp with the date and time of the most recent change. This timestamp is updated with ''dbTouch()'', without the saved contents being changed.

''void **dbTouch**(string //key//)''

This function can be used, for example, in combination with an [[:en:create:questions:extselect|extended selection]]. The selected option can therefore be given a current timestamp -- options that have not been selected for a certain amount of time can then be deleted based on this timestamp.