Are there specific code tags that should be used when writing PHP code in HTML files?

When writing PHP code within HTML files, it is important to use the PHP opening and closing tags to properly distinguish between PHP code and HTML code. The PHP opening tag is <?php and the closing tag is ?>. These tags ensure that the PHP code is executed by the server before the HTML is rendered to the browser.

&lt;?php
// PHP code goes here
?&gt;