How can one ensure that PHP code within HTML elements is executed properly to generate dynamic content?

To ensure that PHP code within HTML elements is executed properly to generate dynamic content, it is important to use the PHP opening and closing tags <?php ?> within the HTML code where the dynamic content needs to be displayed. This allows the PHP interpreter to recognize and execute the PHP code within the HTML document.

&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 &quot;John Doe&quot;; ?&gt;!&lt;/h1&gt;
&lt;/body&gt;
&lt;/html&gt;