What are the potential challenges or drawbacks of converting HTML files to PHP for script integration?

One potential challenge of converting HTML files to PHP for script integration is the need to properly handle PHP code within the HTML file. This can lead to errors if not done correctly, such as syntax errors or misplacement of PHP tags. To solve this issue, ensure that PHP code is enclosed within <?php ?> tags and properly integrated into the HTML structure.

&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 &lt;?php echo &quot;User&quot;; ?&gt;&lt;/h1&gt;
    &lt;?php
        $date = date(&#039;Y-m-d&#039;);
        echo &quot;&lt;p&gt;Today&#039;s date is: $date&lt;/p&gt;&quot;;
    ?&gt;
&lt;/body&gt;
&lt;/html&gt;