Calculates the new expiration date for a member
public calculate_expiration ( $force_now = false ) : String | ||
return | String | Date in Y-m-d H:i:s format or "none" if is a lifetime member |
public calculate_expiration ( $force_now = false ) : String | ||
return | String | Date in Y-m-d H:i:s format or "none" if is a lifetime member |