Migrate Code in Custom Files from v2018

PHPMaker General Discussion (PHPMaker)
1

Below code is Custom File from v2018.
How to do this with v2024 ?Thank you.

<!-- manifest.php -->
<?php include_once "ewcfg14.php" ?>
<?php include_once "ewmysql14.php" ?>
<?php include_once "phpfn14.php" ?>
<?php include_once "userinfo.php" ?>
<?php include_once "userfn14.php" ?>
<?php include_once "ewshared14.php" ?>

<?php
/* 
  Define variables:
    connect to db ...
    use language phrases ...
    etc 
 */

$manifest = [
  ... using variables ...
];

header('Content-Type: application/json');
echo json_encode($manifest, JSON_UNESCAPED_SLASHES);
?>
2

https://discourse.hkvstore.com/t/how-to-load-data-from-database-into-custom-files-v2024/8911/1

3

Works as expected.
Thank you.