WordPress的Advanced Custom Fields自定义文章字段插件如何获取某个组的字段

Advanced Custom Fields是一款自定义文章字段的插件，功能较为强大，字段可以分组来指派，那么我们如何显示某个字段组下的字段呢？

也就是如何get fields from group，我们需要用到一个方法get_field_object。

<?php 
//or insert the ID of your fields Group.
$groupID='116';
$custom_field_keys = get_post_custom_keys($groupID);
foreach ( $custom_field_keys as $key => $fieldkey )
{
if (stristr($fieldkey,'field_'))
{
//echo $key . " => " . $fieldkey . "<br />";
//echo $field['label'] . ': ' . $field['value'];
//echo $fieldkey . "<br />";
$field = get_field_object($fieldkey, $groupID);

$acf_field_name = $field['name'];

$attachment = get_field($acf_field_name);
echo "<img src='".$attachment['url']."' title='".$attachment['title']."'/>";


}
}

?>

以上代码参考自wordpress.stackexchange.com/questions/95126/acf-get-fields-from-group