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I have a question. I have 2 types of custom field group: Group A and Group B. All I am using ACF. In Group A, I have field name course_trainer. This field type is a User type and can have multiple values.

In Group B, I have field name class_trainer.This field type is a Select type and cannot have multiple value. This field will display data from field course_trainer. Basically, I used dynamic select for data to display at class_trainer.

If course_trainer field type not using multiple values, I can manage to display the data but if field type can have multiple values, the data not display at all.

I create a function in function.php to display the dynamic select:

function acf_load_t_first_name2_field_choices($field) {
    global $post;
    //$post = $_GET['post'];
    // reset choices
    $field['choices'] = array();


    // get the textarea value from options page without any formatting
    $choices = get_field('t_first_name',$post->ID);



    // loop through array and add to field 'choices'
    if( is_array($choices) ) {

        foreach( $choices as $choice ) {

            $field['choices'][ $choice ] = $choice;

        }

    }


    // return the field
    return $field;

}

add_filter('acf/load_field/name=course_trainer', 'acf_load_t_first_name2_field_choices');

Can someone correct my codes? Please help me :(

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Can you try this amendment and see if $field is returning as you expect?

$field['choices'][] = $choice;
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  • I have tried this solution but the result still same. the select list not appear – user3239674 Mar 4 '20 at 14:43
  • Thank you @KiwisTasteGood . the solution works for me. I am just change the $field['choices'][ $choice ] = $choice; to your solution $field['choices'][] = $choice; and change add_filter('acf/load_field/name=course_trainer', 'acf_load_t_first_name2_field_choices'); to add_filter('acf/load_field/key=field_5e4a373c551fe', 'acf_load_t_first_name2_field_choices');. the array and key is the problem. Thanks dude – user3239674 Mar 4 '20 at 14:52
  • @user3239674 no problem glad to help! – KiwisTasteGood Mar 4 '20 at 16:05

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