Is it possible to echo framesets in PHP and include PHP code between them, and if so, what are the potential issues with this approach?

It is not possible to echo framesets in PHP directly because framesets are HTML elements and PHP is a server-side scripting language. However, you can include PHP code between frameset tags by echoing HTML code that contains PHP variables or functions. One potential issue with this approach is that it can make the code harder to read and maintain, as mixing PHP and HTML too closely can lead to confusion.

<?php
// Example of including PHP code between frameset tags
$variable = "Hello World";
echo '<frameset cols="50%,50%">';
echo '<frame src="left.php">';
echo '<frame src="right.php">';
echo '</frameset>';
?>