What are the potential conflicts that can arise when multiple scripts require a config.php file in the same directory?

When multiple scripts require a config.php file in the same directory, conflicts can arise if the file is included multiple times, leading to redeclaration errors or unexpected behavior. To solve this issue, you can use the `require_once` or `include_once` functions instead of `require` or `include` to ensure that the file is only included once.

require_once 'config.php';