如何在函数中添加WordPress循环？

Question

我想在函数中添加WordPress循环。我尝试在功能中添加此代码，但它无法正常工作。使用global $post;也不会产生任何影响。谁能告诉我如何在函数中添加循环？

循环：

$term_lists = wp_get_post_terms($post->ID, 'vendors', array("fields" => "all"));

foreach($term_lists as $term_singles) {

echo $custotaxos = $term_singles->slug."<br>"; //do something here

$myposts = get_posts(array(
    'showposts' => -1,
    'post_type' => 'vendor',
    'tax_query' => array(
        array(
        'taxonomy' => 'vendors',
        'field' => 'slug',
        'terms' => array($term_singles->name))
    ))
);

foreach ($myposts as $mypost) {
      echo $mypost->post_title . '<br/>';
      echo  $mypost->ID . '<br/>';
echo get_permalink($mypost->ID);

echo "<br>";
}

}

功能：

function woo_custom_product_tab_content() {

}
add_filter( 'woocommerce_product_tabs', 'woo_custom_product_tab' );