Getting “0” value into mail

Hello, i’m having problems getting value via email.

This is the CF7 shortcode:
[dynamicselect* dynamicselect-200 "fi-dyn-esecuzione"]

This is the field into mail tab of CF7:
Esecuzione: [dynamicselect-200]

This is the function:

function cf7_dynamic_select_do_example1($choices, $args=array()) {
    $choices = array_flip(get_field('prod_esecuzione'));
    return $choices;
} 
add_filter('fi-dyn-esecuzione', 'cf7_dynamic_select_do_example1', 10, 2);

I see correct values into form dropdown but unfortunately, this is the results in email:
Esecuzione: 0 (instead of selected value)

What’s wrong?

• This topic was modified 7 years, 2 months ago by gleenk.
• This topic was modified 7 years, 2 months ago by gleenk.