Solutions to include a static page in the php page

Include a static page in the php page and use the blog system to create a new page template. The template has been deleted as blank. Now there is another static page for code debugging, which contains some css and js code and a form. Static pages can run normally when used independently, but cannot be imported to the php page. I don't know why. please include a static page in the php page.
I use the blog system to build a website and create a new page template. The template has been deleted as blank. Now there is another static page for code debugging, which contains some css and js code and a form. Static pages can run normally when used independently, but cannot be imported to the php page. I don't know why. please give us some guidance.

By the way, what is the call function for the "page" content in the blog system (not the call function in the new article )? If?

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First, check whether the path is correct.

Generally, templates are stored in a directory.
Its php program is stored in another directory or in its parent directory.
If the js, css, and image paths do not use the path referenced by the website root, the operation will fail.


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The path is wrong. Is codehtml the same as the current php program? Yes. ./Codehtml/file name.