How can i list the categories of a post type, the taxonomy

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How can i retrive the categories from a post_type that i select.

I have a Custom_field – categorie_serial

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<?php

$values = get_field('categorie_serial');
if($values)
{
    echo '<ul>';

    foreach($values as $value)
    {
        echo '<li>' . $value . '</li>';
    }

    echo '</ul>';
}

// always good to see exactly what you are working with
var_dump($values);

?>

This code retrive me the categories but it retrive me an error
The line 40 is “foreach($values as $value)” 

    Warning: Invalid argument supplied for foreach() in /home/****/public_html/****/wp-content/themes/movies/tabserial/detali-serial.php on line 40

string(334) "Gen SerialeActiuneAnimatieAventura"

How can i retrive the only the parent categories?
I do not want to retrive Gen Seriale – categoriy , only Actiune..

RESOLVED: 

<?php 
$terms = get_terms('seriale','child_of=668');foreach ($terms as $term) {echo '<a href="'.get_term_link($term).'">'.$term->name.'</a>';}
?>
Post Views: 2

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2 comments

  1. This should get you started

    function my_cpt_cats() {
    $parent = get_term_by( 'slug', get_query_var( 'term' ), get_query_var( 'taxonomy' ) );
    $args = array(
        'type'                     => 'post', 
        'child_of'                 => $parent->term_id,
        'parent'                   => '',
        'orderby'                  => 'slug',
        'order'                    => 'DESC',
        'hide_empty'               => 1,
        'hierarchical'             => 1,
        'exclude'                  => '',
        'include'                  => '',
        'number'                   => '',
        'taxonomy'                 => 'YOUR_TAXONOMY',
        'pad_counts'               => false 
    );
    $categories = get_categories( $args );
}

    Remember to use your taxonomy name in the $args array.

  2. The solution for other. Thanks to Milo.

    668 – is the id of the category

    $terms = get_the_terms( $post->ID, 'seriale' );
foreach( $terms as $term ):
    if( 668 == $term->parent ){
        echo '<a href="'.get_term_link($term).'">'.$term->name.'</a>';
    }
endforeach;