php - 如何在 wordpress 中通过父类别 ID 获取子类别？

Question

拜托，任何人都可以帮助我，我是 wordpress 世界的新手。如何在 wordpress 中通过父类别 ID 获取子类别？

Answer 1

你需要使用get_terms($taxonomies, $args);

$parent_term_id = 4; // term id of parent term (edited missing semi colon)

$taxonomies = array( 
    'category',
);

$args = array(
    'parent'         => $parent_term_id,
    // 'child_of'      => $parent_term_id, 
); 

$terms = get_terms($taxonomies, $args);

您也可以使用 'child_of' 代替；

Note: the difference between child_of and parent is that where parent only gets direct children of the parent term (ie: 1 level down), child_of gets all descendants (as many levels as are available)

食品法典:get_terms