How can variables be used in HTML elements in PHP, according to the forum discussion?
To use variables in HTML elements in PHP, you can simply echo the variable within the HTML code. This allows you to dynamically insert the value of the variable into the HTML element. For example, if you have a variable $name that you want to display in a paragraph element, you can echo the variable within the paragraph tags.
<?php
$name = "John Doe";
?>
<p><?php echo $name; ?></p>