What are the potential risks of redundant data storage in the context of file management with PHP?

Redundant data storage in file management with PHP can lead to increased storage costs, slower performance due to unnecessary data duplication, and potential inconsistencies if updates are not properly synchronized across redundant copies. To mitigate these risks, it's important to centralize data storage and ensure that updates are made in a single location to maintain data integrity.

// Example of centralizing data storage in PHP

$centralFilePath = '/path/to/centralized/data.txt';

// Function to read data from the centralized file
function readDataFromCentralFile() {
    global $centralFilePath;
    return file_get_contents($centralFilePath);
}

// Function to write data to the centralized file
function writeDataToCentralFile($data) {
    global $centralFilePath;
    file_put_contents($centralFilePath, $data);
}