What are the best practices for differentiating between PHP and ASP tags to avoid confusion?

To differentiate between PHP and ASP tags and avoid confusion, it is recommended to use distinct opening and closing tags for each language. For PHP, use <?php ?> tags, and for ASP, use <% %> tags. This will clearly indicate which language the code belongs to and prevent any mix-ups.

&lt;?php
// PHP code here
?&gt;