post array from group of checkboxes

  • hi there!

    I am building a page that is supposed to send the values of multiple checkboxes to the next page, and into CF7.

    The correct syntax to get the values of a group of checkboxes is

    <input type="checkbox" name="trip_addon[]" value="trip_addon_name"> label

    but of course, when doing this in the CF7 form:
    [dynamictext Bouwstenen uneditable "CF7_POST key='trip_addon[]'"]

    the form breaks, due to the added square brackets.
    How can I solve this issue, and get all data from the array generated by the checkboxes into a field? When I remove [] the result is (of course)

    Array

    so we must go deeper, but how? Thanks in advance for any help!

    https://www.ads-software.com/plugins/contact-form-7-dynamic-text-extension/

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