What are the potential issues with using HTML tags in PHP code for formatting output, as seen in the forum thread?

The potential issue with using HTML tags in PHP code for formatting output is that it can make the code harder to read and maintain. To solve this issue, it's better to separate the HTML markup from the PHP logic by using PHP echo statements to output the HTML.

<?php
// Example of separating HTML markup from PHP logic
$name = "John Doe";
$email = "john.doe@example.com";

echo "<div>";
echo "<p>Name: $name</p>";
echo "<p>Email: $email</p>";
echo "</div>";
?>