'不能将 stdClass 类型的对象用作数组'使用 WordPress
我正在尝试检索 WordPress 帖子内标签的 slug，现在可以使用
$tag = wp_get_post_tags($post->ID);
通过使用这个，你应该得到像这样返回的数据...
Array
(
[0] => stdClass Object
(
[term_id] => 4
[name] => tag2
[slug] => tag2
[term_group] => 0
[term_taxonomy_id] => 4
[taxonomy] => post_tag
[description] =>
[parent] => 0
[count] => 7
)
[1] => stdClass Object
(
[term_id] => 7
[name] => tag5
[slug] => tag5
[term_group] => 0
[term_taxonomy_id] => 7
[taxonomy] => post_tag
[description] =>
[parent] => 0
[count] => 6
)
)
现在我想要的是第一个项目的slug，应该如下所示
$tag[0]['slug']
但是通过这样做我收到此 php 错误：
不能将 stdClass 类型的对象用作 数组
可以告诉我我在这里做错了什么吗？获取数据的最佳方法是什么
I am trying to retrieve the slug for a tag inside a wordpress post, now its possible to get all tag info using
$tag = wp_get_post_tags($post->ID);
More info on this on the Wordpress Docs
By using this you should get data returned like this...
Array
(
[0] => stdClass Object
(
[term_id] => 4
[name] => tag2
[slug] => tag2
[term_group] => 0
[term_taxonomy_id] => 4
[taxonomy] => post_tag
[description] =>
[parent] => 0
[count] => 7
)
[1] => stdClass Object
(
[term_id] => 7
[name] => tag5
[slug] => tag5
[term_group] => 0
[term_taxonomy_id] => 7
[taxonomy] => post_tag
[description] =>
[parent] => 0
[count] => 6
)
)
Now what I want is the slug for the first item which should be as follows
$tag[0]['slug']
However by doing so I recieve this php error:
Cannot use object of type stdClass as
array
Can someone tell me what I'm doing wrong here? and whats the best way to get the slug data
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评论（2）
请注意，该数组包含对象（
stdClass的实例），而不是其他数组。所以语法是：Note that the array contains objects (instances of
stdClass), not other arrays. So the syntax is:另一个选择应该是显式地将 $tag[0] 转换为数组：
但无法让它工作
Another option should be to explicitly cast $tag[0] into an array:
Can't get it to work though