How can PHP and HTML code be properly separated to avoid parsing errors?

To properly separate PHP and HTML code to avoid parsing errors, you can use PHP opening and closing tags within the HTML code. This allows you to switch between PHP and HTML seamlessly without causing any syntax errors. By enclosing PHP code within <?php ?> tags, you can ensure that the PHP code is executed correctly without interfering with the HTML markup.

&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;PHP HTML Separation&lt;/title&gt;
&lt;/head&gt;
&lt;body&gt;
    &lt;h1&gt;Welcome!&lt;/h1&gt;
    &lt;?php
        $name = &quot;John&quot;;
        echo &quot;&lt;p&gt;Hello, $name!&lt;/p&gt;&quot;;
    ?&gt;
&lt;/body&gt;
&lt;/html&gt;