php - 整个组高级自定义字段的输出字段

Question

我正在尝试找到一种方法(使用 wordpress 插件 ACF)来输出整个字段组。

我有两个“字段组”，如果其中一个是“事件的”(带有一个复选框)，我想将它们回显到我的模板中。

问题是，如何从一个“字段组”中获取所有字段数据的数组？

现在我正在尝试以下操作:

<?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
        )

)

我想基本上执行以下操作(请原谅 sudo/损坏的代码，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>";
    }

?>

我还可以获得如下特定字段数据:

<?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
)

但我真的需要为每个“字段组”调用每个字段键吗？一个“字段组”中不是所有字段的数组吗？

Answer 1

您可以获得属于一个组的所有字段的数组。函数是:

$acf_fields = acf_get_fields_by_id( $group_ID );

我们需要知道 ACF 字段组 ID。您可以在组编辑页面的 url 中找到它，例如:

http://site.ru/wp-admin/post.php?post=340&action=edit

在这种情况下，组 ID 是 340。如果您不想使用硬编码 ID(如果您的组不时更改)，您可以使用组名(在此示例中组名 id Technic CPT)获取它):

global $wpdb;
$group_ID = $wpdb->get_var( "SELECT ID FROM $wpdb->posts WHERE post_title = 'Technic CPT'" );

输出看起来像这样:

array(1) {
  [0] => array(29) {
    ["ID"] => int(366)
    ["key"] => string(19) "field_55f05295a59ca"
    ["label"] => string(29) "Gallery of technic"
    ["name"] => string(15) "technic_gallery"
    ["prefix"] => string(0) ""
    ["type"] => string(7) "gallery"
    ["value"] => NULL
    ["menu_order"] => int(6)
    ["instructions"] => string(155) "Field instructions"
    ["required"] => int(0)
    ["id"] => string(0) ""
    ["class"] => string(0) ""
    ["conditional_logic"] => int(0)
    ["parent"] => int(340)
    ["wrapper"] => array(3) {
      ["width"] => int(50)
      ["class"] => string(0) ""
      ["id"] => string(0) ""
    }
    ["_name"] => string(15) "technic_gallery"
    ["_input"] => string(0) ""
    ["_valid"] => int(1)
    ["min"] => string(0) ""
    ["max"] => int(10)
    ["preview_size"] => string(9) "thumbnail"
    ["library"] => string(3) "all"
    ["min_width"] => int(475)
    ["min_height"] => int(365)
    ["min_size"] => string(0) ""
    ["max_width"] => string(0) ""
    ["max_height"] => string(0) ""
    ["max_size"] => int(2)
    ["mime_types"] => string(0) ""
  }
}