How to treat an XML code in html page correctly?

[eaglehopes]

I have a home.html page in where I put some example XML code ( I got this code from https://www.sitemaps.org/protocol.html) :

<pre><code>
<?xml version="1.0" encoding="UTF-8"?>

<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">

   <url> ..... </url>
   <url> ..... </url>
   <url> ..... </url>
   <url> ..... </url>
   .
   .
   .
</urlset>
</code></pre>

I am using PHP to include my home.html page into the main page(i.e. index.php) :

...
<div><?php
include "./p/home.html"
?>
</div>
...

In final, XML code gives error because it contains "<?" and "?>". How  I used "<pre><code>....</code></pre>" and put above XML code inside it, but no success. How can I correctly show my code part in my home.html page? Thanks

Edited June 18, 2022 by eaglehopes
I add where I got XML code and change title too.

[Barand]

Perhaps

echo '<pre>' . htmlentities('
<?xml version="1.0" encoding="UTF-8"?>

<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">

   <url> ..... </url>
   <url> ..... </url>
   <url> ..... </url>
   <url> ..... </url>

</urlset>
') . '</pre>';

 

[eaglehopes]

2 hours ago, Barand said:

Perhaps

echo '<pre>' . htmlentities('
<?xml version="1.0" encoding="UTF-8"?>

<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">

   <url> ..... </url>
   <url> ..... </url>
   <url> ..... </url>
   <url> ..... </url>

</urlset>
') . '</pre>';

 

I used your code in my webpage and worked like a charm. Thanks, I did not know .htmlentities function of PHP.