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Update and fieldand display result before submit form

  • Hello,
    I have a form in frontend

    The code below is working well to calculate price and save it in database :

    function my_acf_update_totalprice( $post_id )

    // bail early if not a reservation post
    if( get_post_type($post_id) !== ‘reservation’ ) {

    $total = get_field( ‘prix_chambre_simple’, $post_id) * get_field( ‘nombre_de_chambres_simples’, $post_id );
    $value = $total;
    $field_name = “prix_total”;
    update_field($field_name, $value, $post_id);
    add_action(‘acf/save_post’, ‘my_acf_update_totalprice’);

    I want to add a total_field before the submit button. How to display the total in this field before form is submitted ?

    Can you help me to do it please ?

    Thank you

  • Hi @dweb

    For something like that, you need to use JavaScript code to get the values and calculate the total. This page should give you more idea about it:

    because this is more related to JavaScript and jQuery, kindly visit their community for further support.

    I hope this helps 🙂

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