使用get_categories()获取几个类别的子类别 [英] get sub categories of several categories with get_categories()

问题描述

是否可以获取几个类别的所有子类别?像这样:

Is there a way to get all sub categories of several categories? something like:

get_categories( array( 'child_of'=>array(10,3,8) );

推荐答案

不可能，wordpress在其所有获得类别子项的函数中仅接受一个整数.您必须分别带他们的孩子:

It's not possible, wordpress just accepts one integer in all it's functions that get categories children. You'll have to get their children separately:

$terms = array();
$taxonomy = 'category';
$parents = array(10, 3, 8);
foreach ($parents as $parent) {
    $terms = array_merge($terms, get_categories(array('child_of'=> $parent)));
}

foreach ($terms as $term) {
    // your code here
}

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