What are some best practices for efficiently sorting and displaying feeds in PHP while minimizing loading times?

When sorting and displaying feeds in PHP, it is essential to optimize the process to minimize loading times. One best practice is to fetch and process only the necessary data from the database before sorting and displaying it. Additionally, consider implementing caching mechanisms to store pre-sorted feeds and reduce the need for repeated sorting operations.

// Fetch feeds from the database
$feeds = fetchDataFromDatabase();

// Sort feeds based on a specific criteria
usort($feeds, function($a, $b) {
    return strtotime($a['timestamp']) - strtotime($b['timestamp']);
});

// Display the sorted feeds
foreach ($feeds as $feed) {
    echo $feed['content'];
}