In what scenarios would it be more efficient to handle calculations and data manipulation in PHP rather than solely relying on database queries for complex calculations?

In scenarios where complex calculations or data manipulation are required, it may be more efficient to handle these tasks in PHP rather than solely relying on database queries. This can reduce the load on the database server and improve performance by utilizing PHP's processing capabilities. Additionally, PHP offers more flexibility and control over the calculations, allowing for more customized and optimized solutions.

// Example of handling complex calculations in PHP rather than relying solely on database queries

// Fetch data from the database
$query = "SELECT * FROM table";
$result = mysqli_query($connection, $query);

// Perform calculations in PHP
while($row = mysqli_fetch_assoc($result)) {
    $calculationResult = $row['value'] * 2; // Example calculation
    // Store or display the calculated result
    echo $calculationResult;
}