如何在所有WordPress帖子中插入PHP代码

问题描述：

I need to add my own custom PHP script to all Wordpress pages of my blog.

I am not referring to adding PHP onto a single page (which can be done with a plugin).

Essentially, this is what I need to do:

Add a snippet of code directly to Wordpress script that handles display of posts.
The snippet needs to be able to grab a ID of the post.

Can someone show me the best way to do this?

This is what I need to figure out:

Which of the Wordpress php files handles the display of the Wordpress posts (is it post-template.php by any chance?)
How to grab the Post ID using PHP? I found the page which says this could be the possible way, is that correct way of getting the Post ID?

$id = get_the_ID();

我需要将自己的自定义PHP脚本添加到我博客的所有Wordpress页面。 p> \ n

我不是指将PHP添加到单个页面上（可以使用插件完成）。 p>

基本上，这就是我需要做的事情： p>

将一段代码直接添加到处理 display的Wordpress脚本帖子。 li>
该片段需要能够获取帖子的ID。 li> ul>
有人能告诉我最佳方式要做到这一点？ p>

这是我需要弄清楚的： p>
- 哪些Wordpress php文件处理 Wordpress posts的显示（它是post-template.php吗？） p> li>
- 如何使用PHP获取帖子ID？我发现这个页面说明了这可能是获取帖子ID的正确方法吗？ p>
  
  $ id = get_the_ID（）; p> li> \ n ul> div>

答

for single post, it single.php and to get post ID

$post = get_post();
$id = $post->ID;

答

It depends on the theme. Very simple themes might use index.php for all pages, others use single.php for the display of single posts, and there are a lot more possibiites, also secondary templates (template parts) which are included in the primary templates and contain part of the post. Have a look in the theme folder.

Inside all of these, the posts are always inside "the loop". This page has the explanation and some useful examples: https://codex.wordpress.org/the_loop HTH

如何在所有WordPress帖子中插入PHP代码

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