How can unexpected errors like parse errors be resolved when using PHP code in HTML tags?

To resolve unexpected errors like parse errors when using PHP code in HTML tags, ensure that the PHP code is properly enclosed within `<?php ?>` tags. Additionally, make sure there are no syntax errors within the PHP code itself.

&lt;?php
// Example PHP code within HTML tags
$name = &quot;John&quot;;
echo &quot;&lt;p&gt;Hello, $name!&lt;/p&gt;&quot;;
?&gt;