What are the best practices for sorting an array of date values from newest to oldest and extracting the top 3 entries in PHP?

When sorting an array of date values from newest to oldest and extracting the top 3 entries in PHP, you can use the `usort` function to sort the array based on the date values. Then, you can use `array_slice` to extract the top 3 entries from the sorted array.

// Sample array of date values
$dates = ['2022-01-15', '2021-12-20', '2022-02-10', '2021-11-05', '2022-03-01'];

// Sort the array from newest to oldest
usort($dates, function($a, $b) {
    return strtotime($b) - strtotime($a);
});

// Extract the top 3 entries
$top3 = array_slice($dates, 0, 3);

// Output the top 3 entries
print_r($top3);