整个组高级自定义字段的输出字段

我正试图找到一种方法(使用wordpress插件ACF)输出一整组字段。

我有两个"字段组"，我想说，如果他们中的任何一个是"活动"(带复选框)，以回显他们到我的模板。

问题是，我如何从一个"字段组"获得所有字段数据的数组?

现在我正在尝试做下面的事情:

<?php
$group_ID = 37;
$fields = array();
$fields = apply_filters('acf/field_group/get_fields', $fields, $group_ID);
echo "<pre>";
print_r($fields);
echo "</pre>";
?>

它输出一个字段数组，但据我所知它不包含实际数据:

Array
(
    [0] => Array
        (
            [key] => field_537b79d92081f
            [label] => Active-1
            [name] => active-1
            [_name] => active-1
            [type] => true_false
            [order_no] => 0
            [instructions] => 
            [required] => 0
            [id] => acf-field-active-1
            [class] => true_false
            [conditional_logic] => Array
                (
                    [status] => 0
                    [rules] => Array
                        (
                            [0] => Array
                                (
                                    [field] => null
                                    [operator] => ==
                                )
                        )
                    [allorany] => all
                )
            [message] => 
            [default_value] => 0
            [field_group] => 37
        )
    [1] => Array
        (
            [key] => field_537b78a4c743e
            [label] => Title-1
            [name] => title-1
            [_name] => title-1
            [type] => text
            [order_no] => 1
            [instructions] => 
            [required] => 0
            [id] => acf-field-title-1
            [class] => text
            [conditional_logic] => Array
                (
                    [status] => 0
                    [rules] => Array
                        (
                            [0] => Array
                                (
                                    [field] => field_537b79d92081f
                                    [operator] => ==
                                    [value] => 1
                                )
                        )
                    [allorany] => all
                )
            [default_value] => 
            [placeholder] => 
            [prepend] => 
            [append] => 
            [formatting] => html
            [maxlength] => 
            [field_group] => 37
        )
    [2] => Array
        (
            [key] => field_537b78c6c743f
            [label] => Info-1
            [name] => info-1
            [_name] => info-1
            [type] => textarea
            [order_no] => 2
            [instructions] => 
            [required] => 0
            [id] => acf-field-info-1
            [class] => textarea
            [conditional_logic] => Array
                (
                    [status] => 0
                    [rules] => Array
                        (
                            [0] => Array
                                (
                                    [field] => field_537b79d92081f
                                    [operator] => ==
                                    [value] => 1
                                )
                        )
                    [allorany] => all
                )
            [default_value] => 
            [placeholder] => 
            [maxlength] => 
            [rows] => 
            [formatting] => br
            [field_group] => 37
        )
)

我想基本上做以下(原谅sudo/破碎的代码，PHP不是我的语言):

<?php
    $group_ID1 = 37;
    $fields = array($group_ID1);
    if ($fields1['active'] !== null) {
        echo "<h1>";
        echo $fields1['active']['text'];
        echo $fields1['title']['text'];
        echo $fields1['content']['text'];
        echo "<h1>";
    }
    $group_ID2 = 38;
    $fields2 = array($group_ID2);
    if ($fields2['active'] !== null) {
        echo "<h1>";
        echo $fields2['active']['text'];
        echo $fields2['title']['text'];
        echo $fields2['content']['text'];
        echo "<h1>";
    }
?>

我也可以像下面这样得到一个特定的字段数据:

<?php
    $field_key = "field_537b78c6c743f";
    $field = get_field_object($field_key);
    if($field) {
        echo "<pre>";
        print_r($field);
        echo "</pre>";
    }
?>

输出如下:

Array
(
    [key] => field_537b78c6c743f
    [label] => Info-1
    [name] => info-1
    [_name] => info-1
    [type] => textarea
    [order_no] => 2
    [instructions] => 
    [required] => 0
    [id] => acf-field-info-1
    [class] => textarea
    [conditional_logic] => Array
        (
            [status] => 0
            [rules] => Array
                (
                    [0] => Array
                        (
                            [field] => field_537b79d92081f
                            [operator] => ==
                            [value] => 1
                        )
                )
            [allorany] => all
        )
    [default_value] => 
    [placeholder] => 
    [maxlength] => 
    [rows] => 
    [formatting] => br
    [field_group] => 37
    [value] => testtesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttest
)

但是我真的需要为每个"字段组"调用每个字段键吗?在一个"字段组"中没有所有字段的数组吗?