Can HTML pages integrate PHP files without using frames or similar tricks?

Yes, HTML pages can integrate PHP files without using frames or similar tricks by simply renaming the HTML file to have a .php extension and including PHP code within <?php ?> tags. This allows the PHP code to be executed on the server before the HTML is sent to the client's browser.

&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;PHP Integration&lt;/title&gt;
&lt;/head&gt;
&lt;body&gt;
    &lt;h1&gt;Welcome to our website!&lt;/h1&gt;
    
    &lt;?php 
        // PHP code here
        echo &quot;This is a PHP integrated HTML page.&quot;;
    ?&gt;
    
&lt;/body&gt;
&lt;/html&gt;