In the context of PHP script development, what are the implications of using network drives and system commands for backup processes?

When using network drives and system commands for backup processes in PHP scripts, it is important to ensure that proper permissions are set for accessing the network drives and executing system commands. This includes making sure that the PHP script has the necessary permissions to read from and write to the network drive, as well as execute system commands. Additionally, it is crucial to sanitize user input to prevent any potential security vulnerabilities.

<?php
// Set proper permissions for accessing network drives and executing system commands
// Ensure that the PHP script has necessary permissions to read from and write to the network drive
// Sanitize user input to prevent security vulnerabilities
?>