WordPress 4.5.0之后如何从自定义分类中获取术语

我一直在开发短代码，从插件中提取自定义分类法的术语。它在WordPress 4.5.0之前运行良好，现在意识到它在4.5.0之后无法运行。

我用下面这样的旧方法提取这些术语。

Old Method

// Sermon Topics
$prefix_topic_terms= array();
if ( ! empty( $prefix_topic_terms ) ) {
    $prefix_sermon_topic = get_terms(\'ctc_sermon_topic\', \'orderby=name&hide_empty=0\');
    foreach ($prefix_sermon_topic as $category) {
        $prefix_topic_terms[$prefix_sermon_topic->slug] = $prefix_sermon_topic->name;
    }
}

New Method that didn\'t work

// Sermon Topics
$prefix_topic_terms = array();
if ( ! empty( $prefix_topic_terms ) ) {
    $prefix_sermon_topic = get_terms( array(
        \'taxonomy\' => \'ctc_sermon_topic\',
        \'hide_empty\' => false,
        \'orderby\' => \'name\',
        \'hide_empty\' => true,
    ));

    foreach ($prefix_sermon_topic as $category) {
        $prefix_topic_terms[$category->slug] = $category->name;
    }
}

var_dump($prefix_topic_terms);

显示错误无效分类错误，如下所示

object(WP_Error)#2577 (2) {
  ["errors"]=>
  array(1) {
    ["invalid_taxonomy"]=>
    array(1) {
      [0]=>
      string(17) "Invalid taxonomy."
     }
  }
  ["error_data"]=>
  array(0) {
  }
}

我做错了什么？

Edited使用以下代码获得成功

// Sermon Topics
$prefix_topic_terms = array();
$prefix_sermon_topic = get_terms( array(
    \'taxonomy\' => \'ctc_sermon_topic\',
    \'orderby\' => \'name\',
    \'hide_empty\' => true,
));
if ( ! empty( $prefix_topic_terms ) && ! is_wp_error( $prefix_topic_terms ) ) {
    foreach($prefix_sermon_topic as $category) {
        $prefix_topic_terms [$category->slug] = $category->name;
    }
}

如果我删除if条件，则上述代码有效。

function sermon_topic() { $prefix_terms = array(); $prefix_postype_taxonomy = get_terms( array( \'taxonomy\' => \'ctc_sermon_topic\', \'orderby\' => \'name\', \'hide_empty\' => true, )); if ( ! empty( $prefix_postype_taxonomy ) && ! is_wp_error( $prefix_postype_taxonomy ) ) { foreach($prefix_postype_taxonomy as $category) { $prefix_terms[$category->slug] = $category->name; } } return $prefix_terms; }

Custom sub taxonomy order by

在单类别页面中，特定的父类别子类别按slug或order wise显示，我会尝试，但我的代码中有错误，请检查我的代码并告诉我如何可能。$term_children = get_term_children( $EM_Category->id, \'event-categories\' ); if ( count($term_children) > 0 ) { foreach ( $term_children as $child ) { $term

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Custom sub taxonomy order by