Muss bei PHP-Seiten immer HTML-Code oberhalb von <?php stehen?

In PHP pages, HTML code does not necessarily have to be placed above the PHP opening tag <?php. HTML code can be interspersed with PHP code throughout the page. This allows for greater flexibility in organizing the code and can make it easier to maintain and read. Example PHP code snippet:

&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;PHP Page&lt;/title&gt;
&lt;/head&gt;
&lt;body&gt;

&lt;?php
// PHP code can be placed anywhere within the HTML structure
$variable = &quot;Hello, World!&quot;;
echo &quot;&lt;h1&gt;$variable&lt;/h1&gt;&quot;;
?&gt;

&lt;/body&gt;
&lt;/html&gt;