Are there any security considerations to keep in mind when automating server backups with PHP?

When automating server backups with PHP, it is important to ensure that sensitive data, such as database credentials or backup files, are not exposed to unauthorized users. One way to address this security concern is by storing sensitive information in a separate configuration file outside of the web root directory. This helps prevent direct access to the file by unauthorized users. 

// config.php
define('DB_HOST', 'localhost');
define('DB_USER', 'username');
define('DB_PASS', 'password');
define('DB_NAME', 'database_name');

// backup.php
include 'config.php';

// Your backup logic here

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