Get Advance Custom Fields Value from Taxonomy Term

functions.php

<?php
if ( ! function_exists('custom_post_type') ) {
 
// Register Custom Post Type
function custom_post_type() {
 
    $labels = array(
        'name'                => _x( 'Cars', 'Post Type General Name', 'text_domain' ),
        'singular_name'       => _x( 'Car', 'Post Type Singular Name', 'text_domain' ),
        'menu_name'           => __( 'Cars', 'text_domain' ),
        'parent_item_colon'   => __( 'Parent Car:', 'text_domain' ),
        'all_items'           => __( 'All Cars', 'text_domain' ),
        'view_item'           => __( 'View Car', 'text_domain' ),
        'add_new_item'        => __( 'Add New Car', 'text_domain' ),
        'add_new'             => __( 'Add New', 'text_domain' ),
        'edit_item'           => __( 'Edit Car', 'text_domain' ),
        'update_item'         => __( 'Update Car', 'text_domain' ),
        'search_items'        => __( 'Search Car', 'text_domain' ),
        'not_found'           => __( 'Not found', 'text_domain' ),
        'not_found_in_trash'  => __( 'Not found in Trash', 'text_domain' ),
    );
    $args = array(
        'label'               => __( 'cars', 'text_domain' ),
        'description'         => __( 'custom post type for cars', 'text_domain' ),
        'labels'              => $labels,
        'supports'            => array( 'title', 'editor', 'excerpt', 'author', 'thumbnail', 'comments', 'trackbacks', 'revisions', 'custom-fields', 'page-attributes', 'post-formats', ),
        'taxonomies'          => array( 'models' ),
        'hierarchical'        => false,
        'public'              => true,
        'show_ui'             => true,
        'show_in_menu'        => true,
        'show_in_nav_menus'   => true,
        'show_in_admin_bar'   => true,
        'menu_position'       => 5,
        'can_export'          => true,
        'has_archive'         => true,
        'exclude_from_search' => false,
        'publicly_queryable'  => true,
        'capability_type'     => 'page',
    );
    register_post_type( 'cars', $args );
 
}
 
// Hook into the 'init' action
add_action( 'init', 'custom_post_type', 0 );
 
}

functions2.php

<?php
if ( ! function_exists( 'custom_taxonomy' ) ) {
 
// Register Custom Taxonomy
function custom_taxonomy() {
 
    $labels = array(
        'name'                       => _x( 'Models', 'Taxonomy General Name', 'text_domain' ),
        'singular_name'              => _x( 'Model', 'Taxonomy Singular Name', 'text_domain' ),
        'menu_name'                  => __( 'Models', 'text_domain' ),
        'all_items'                  => __( 'All Models', 'text_domain' ),
        'parent_item'                => __( 'Parent Model', 'text_domain' ),
        'parent_item_colon'          => __( 'Parent Model:', 'text_domain' ),
        'new_item_name'              => __( 'New Model Name', 'text_domain' ),
        'add_new_item'               => __( 'Add New Model', 'text_domain' ),
        'edit_item'                  => __( 'Edit Model', 'text_domain' ),
        'update_item'                => __( 'Update Model', 'text_domain' ),
        'separate_items_with_commas' => __( 'Separate Models with commas', 'text_domain' ),
        'search_items'               => __( 'Search Models', 'text_domain' ),
        'add_or_remove_items'        => __( 'Add or remove Models', 'text_domain' ),
        'choose_from_most_used'      => __( 'Choose from the most used Models', 'text_domain' ),
        'not_found'                  => __( 'Not Found', 'text_domain' ),
    );
    $args = array(
        'labels'                     => $labels,
        'hierarchical'               => false,
        'public'                     => true,
        'show_ui'                    => true,
        'show_admin_column'          => true,
        'show_in_nav_menus'          => true,
        'show_tagcloud'              => true,
    );
    register_taxonomy( 'models', array( 'cars' ), $args );
 
}
 
// Hook into the 'init' action
add_action( 'init', 'custom_taxonomy', 0 );
 
}

functions3.php

<?php the_field('field_name', '{$term->taxonomy}_{$term->term_id}');
 // let assume the ID of Taxonomy term Audi is 4
 the_field( 'model_year', 'models_4' ); 
 
 ?>

functions4.php

<?php
  
$variable = get_field('field_name', 'product-cat_23');
  
// do something with $variable
  
?>