Is it common practice to insert PHP code into HTML pages for dynamic content?

Yes, it is common practice to insert PHP code into HTML pages for dynamic content. This allows developers to generate dynamic content based on variables, conditions, or database queries. To insert PHP code into an HTML page, you can simply enclose the PHP code within <?php ?> tags. Example PHP code snippet:

&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;Dynamic Content Example&lt;/title&gt;
&lt;/head&gt;
&lt;body&gt;
    &lt;h1&gt;Welcome, &lt;?php echo $username; ?&gt;&lt;/h1&gt;
    &lt;p&gt;Your account balance is: &lt;?php echo $balance; ?&gt;&lt;/p&gt;
&lt;/body&gt;
&lt;/html&gt;