In what scenarios would it be necessary to separate the execution of PHP code in different files to ensure proper functionality, such as when using cluetip to display image previews?

When using cluetip to display image previews, it may be necessary to separate the execution of PHP code in different files to ensure proper functionality. This separation helps to keep the code organized and makes it easier to manage and troubleshoot. By splitting the code into different files, you can ensure that each file is responsible for a specific task, such as retrieving image information or generating HTML markup for the cluetip display.

// index.php
<?php
$image_id = $_GET['image_id'];
include 'image_info.php';
include 'cluetip_display.php';
?>

// image_info.php
<?php
// Code to retrieve image information based on $image_id
?>

// cluetip_display.php
<?php
// Code to generate HTML markup for cluetip display
?>