What are the best practices for structuring a PHP script to efficiently process a vast amount of data, as seen in the example of 10^2000 data sets?

When processing a vast amount of data sets in PHP, it is essential to optimize the script for efficiency. One way to achieve this is by breaking down the data processing tasks into smaller chunks to prevent memory overload and improve performance. Additionally, utilizing functions like generators or iterators can help manage large data sets more effectively.

<?php

// Example of processing a vast amount of data sets efficiently
$dataSets = generateDataSets(10**2000);

foreach ($dataSets as $data) {
    // Process each data set here
}

function generateDataSets($totalSets) {
    for ($i = 1; $i <= $totalSets; $i++) {
        yield generateDataSet($i);
    }
}

function generateDataSet($index) {
    // Generate a single data set based on the index
    return "Data set $index";
}

?>