Title: Error
Last modified: March 28, 2017

---

# Error

 *  Resolved [roperjonathan](https://wordpress.org/support/users/roperjonathan/)
 * (@roperjonathan)
 * [9 years, 2 months ago](https://wordpress.org/support/topic/error-910/)
 * Hi there,
 * I’m having a bit of an issue with using the Bookings Dropdown. It says “Strict
   Standards: Only variables should be passed by reference in /home/jonath59/public_html/
   lashis/wp-content/plugins/woo-bookings-dropdown/woo-bookings-dropdown.php on 
   line 74
    bool(false) bool(false)”
 * Can you shed any light why this issue might be occuring? Line 74 seems to be 
   referring to the following:
 * $selected_resource = reset(array_keys($field[‘options’]));
 * Also when I seem to switch from one resource to another, the list of dates don’t
   seem to get updated.
 * Thanks,
 * Jonathan

The topic ‘Error’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/woo-bookings-dropdown.svg)
 * [WooCommerce Bookings Dropdown](https://wordpress.org/plugins/woo-bookings-dropdown/)
 * [Support Threads](https://wordpress.org/support/plugin/woo-bookings-dropdown/)
 * [Active Topics](https://wordpress.org/support/plugin/woo-bookings-dropdown/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/woo-bookings-dropdown/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/woo-bookings-dropdown/reviews/)

## Tags

 * [dates](https://wordpress.org/support/topic-tag/dates/)
 * [strict standards](https://wordpress.org/support/topic-tag/strict-standards/)

 * 0 replies
 * 1 participant
 * Last reply from: [roperjonathan](https://wordpress.org/support/users/roperjonathan/)
 * Last activity: [9 years, 2 months ago](https://wordpress.org/support/topic/error-910/)
 * Status: resolved