php 在wordpress插件页面中获取当前页面ID
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get the current page id inside wordpress plugin page
提问by Sagin
I need to get the current page idin WordPress plugin page outside the loop. And the code I wrote for getting current page idis in my plugin page. I tried many codes, but doesn't work
我需要page id在循环外获取WordPress 插件页面中的当前内容。我为获取最新信息而编写的代码page id在我的插件页面中。我尝试了很多代码，但不起作用
$page_object = get_queried_object();
$page_id = get_queried_object_id();
// "Dirty" pre 3.1
global $wp_query;
$page_object = $wp_query->get_queried_object();
$page_id = $wp_query->get_queried_object_id();
But it doesn't work for me .
但这对我不起作用。
global $post;
echo "pageid: ".$post->ID;
This is also not working.
这也行不通。
When I try
当我尝试
global $wp_query;
$post_obj = $wp_query->get_queried_object();
$Page_ID = $post_obj->ID;
echo $Page_ID;
Then a error message appears
然后出现错误信息
Fatal error: Call to a member function get_queried_object() on a non-object in H:\xampp\htdocs\wordpress\wp-content\plugins\wpk\wpk.php on line 876
致命错误：在第 876 行的 H:\xampp\htdocs\wordpress\wp-content\plugins\wpk\wpk.php 中的非对象上调用成员函数 get_queried_object()
When I print:
当我打印时：
global $wp_query;
print_r($wp_query);
then result is:
那么结果是：
WP_Query Object
(
[query] =>
[query_vars] => Array
(
)
[tax_query] =>
[meta_query] =>
[date_query] =>
[queried_object] =>
[queried_object_id] =>
[request] =>
[posts] =>
[post_count] => 0
[current_post] => -1
[in_the_loop] =>
[post] =>
[comments] =>
[comment_count] => 0
[current_comment] => -1
[comment] =>
[found_posts] => 0
[max_num_pages] => 0
[max_num_comment_pages] => 0
[is_single] =>
[is_preview] =>
[is_page] =>
[is_archive] =>
[is_date] =>
[is_year] =>
[is_month] =>
[is_day] =>
[is_time] =>
[is_author] =>
[is_category] =>
[is_tag] =>
[is_tax] =>
[is_search] =>
[is_feed] =>
[is_comment_feed] =>
[is_trackback] =>
[is_home] =>
[is_404] =>
[is_comments_popup] =>
[is_paged] =>
[is_admin] =>
[is_attachment] =>
[is_singular] =>
[is_robots] =>
[is_posts_page] =>
[is_post_type_archive] =>
[query_vars_hash] =>
[query_vars_changed] => 1
[thumbnails_cached] =>
[stopwords:WP_Query:private] =>
)
I don't know how to solve this, how to get the current page id.If you know how to solve this, then I need your support. Thanks in advance.
我不知道如何解决这个问题，如何获得电流page id。如果你知道如何解决这个问题，那么我需要你的支持。提前致谢。
回答by Sagin
get_the_ID(); or $post->ID;returns the current page or post id in Wordpress.
get_the_ID(); or $post->ID;返回 Wordpress 中的当前页面或帖子 ID。
But you need to ensure that your post is saved in wordpress post table. Other wise you can'tget the id , simply because of it is not an entry in wordpress database.
但是您需要确保您的帖子保存在 wordpress 帖子表中。否则，您将无法获得 id ，因为它不是 wordpress 数据库中的条目。
If it is a static page and it's not an entry in wordpress post then, get_the_ID()didn't return anything.
如果它是一个静态页面并且它不是 wordpress 帖子中的条目，则get_the_ID()不会返回任何内容。
For example: get_the_ID() didn't go to work in post archive pages , administration pages in wordpress backend etc.
例如：get_the_ID() 在帖子归档页面、wordpress 后端的管理页面等中不起作用。
So as per this questionyou are trying to get the id of the page that is a backend plugin setting page or any archive page .
因此，根据此问题，您正在尝试获取作为后端插件设置页面或任何存档页面的页面的 ID。
UPDATE
更新
Method to get the current post id in wordpress
wordpress中获取当前帖子id的方法
(1) global $post; $post->ID();
(1) global $post; $post->ID();
(2) global $wp_query; $post_id = $wp_query->get_queried_object_id();
(2) global $wp_query; $post_id = $wp_query->get_queried_object_id();
(3) global $wp_query; $post_id = $wp_query->post->ID;
(3) global $wp_query; $post_id = $wp_query->post->ID;
(4) get_the_ID();
(4) get_the_ID();
[ It is recommended that this tag must be within The Loop. ]
[ 建议此标签必须在 The Loop 内。]
see this
看到这个
function get_the_ID() {
$post = get_post();
return ! empty( $post ) ? $post->ID : false;
}
ie get_the_ID() return the id of current $post .
即 get_the_ID() 返回当前 $post 的 ID。
(5) get_query_var('page_id')
(5) get_query_var('page_id')
[ it will not going to work if we use pretty permalink ]
https://codex.wordpress.org/Function_Reference/get_query_var
[如果我们使用漂亮的永久链接，它将无法工作]
https://codex.wordpress.org/Function_Reference/get_query_var
回答by Rajalakshmi
You can get IDof the post in current page outside the loop using the technique below:
您可以ID使用以下技术在循环外获取当前页面中的帖子：
global $wp_query;
$post_id = $wp_query->post->ID;
$post = get_post( $post_id );
$slug = $post->post_name;
回答by Ram Sharma
try to use below code to get the page id
尝试使用下面的代码来获取页面 ID
get_the_ID();
回答by Dreszczyk
Chosen answer is working only if you put it in the Wordpress loop. Outside it will render useless.
选择的答案仅在您将其放入 Wordpress 循环中时才有效。在外面它会变得毫无用处。
This is working everywhere:
这在任何地方都有效：
global $wp_query;
$postID = $wp_query->post->ID;
回答by D.A.H
I guess that this is the proper solution:
我想这是正确的解决方案：
$id = get_queried_object_id();
which equals to:
这等于：
function get_queried_object_id() {
global $wp_query;
return $wp_query->get_queried_object_id();
}
回答by Brane
You get see all of the settings and variables in get_defined_vars()function:
您可以看到get_defined_vars()函数中的所有设置和变量：
var_dump(get_defined_vars());
In your case you need to get '_GET' and inside 'post'... The code should look like this:
在您的情况下，您需要获取 '_GET' 并在 'post' 内...代码应如下所示：
$tmp = get_defined_vars();
var_dump($tmp['_GET']['post']);
