为什么不只是重命名文件以PHP结束？这将是最简单的方法。

How can we include a php file into a html file?

I know we can do this with:

  <AddType application/x-httpd-php .html>

but I don't have access to the server. Any other solution which I can include in my website folder or file?

Why not just rename the file to end in PHP? That would be the simplest way to do this.