如何在drupal中获取分类儿童ID

Question

我有一个分类父 tid '8'

我需要获取该父 id 的所有子 tid

$tid = 8;

$children = taxonomy_get_children($tid);

print_r($children); 

正在获取此结果

8

Array
(
[9] => stdClass Object
    (
        [tid] => 9
        [vid] => 3
        [name] => Domestic 
        [description] => Domestic 
        [weight] => 0
    )

[12] => stdClass Object
    (
        [tid] => 12
        [vid] => 3
        [name] => Economic 
        [description] => Economic 
        [weight] => 1
    )

[11] => stdClass Object
    (
        [tid] => 11
        [vid] => 3
        [name] => International
        [description] => 
        [weight] => 2
    )

[10] => stdClass Object
    (
        [tid] => 10
        [vid] => 3
        [name] => Social 
        [description] => 
        [weight] => 3
    )

 )

如何仅显示此数组中的 tid。

Answer 1

$children = array_keys(taxonomy_get_children($tid));

你会注意到它是一个关联数组，其中对象中的 tid 与数组键相同 - 只需获取键，这相当于从对象本身获取 tid。