How can separating the processing of PHP code from the output improve maintainability and readability?

Separating the processing of PHP code from the output can improve maintainability and readability by making the code easier to understand and modify. This separation allows for a clear distinction between logic and presentation, making it easier for developers to work on each aspect independently. It also promotes code reusability and organization, as the processing logic can be easily reused in different parts of the application without affecting the output. 

<?php
// Processing logic
$data = fetchDataFromDatabase();

// Output
foreach ($data as $item) {
    echo "<div>{$item['name']}</div>";
}
?>

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