What are the advantages of restructuring code to avoid using frames in PHP development?

Using frames in PHP development can lead to issues with code readability, maintainability, and performance. By restructuring the code to avoid frames, developers can improve the overall quality of the codebase and make it easier to debug and enhance in the future.

// Original code using frames
<frameset cols="25%,75%">
  <frame src="menu.php">
  <frame src="content.php">
</frameset>

// Restructured code without frames
<div style="width: 25%; float: left;">
  <?php include 'menu.php'; ?>
</div>
<div style="width: 75%; float: left;">
  <?php include 'content.php'; ?>
</div>