How can news articles be grouped and displayed by date in a PHP-based news system?

To group and display news articles by date in a PHP-based news system, you can query the database for articles sorted by date and then loop through the results to display them in the desired format.

// Connect to the database
$connection = new mysqli('localhost', 'username', 'password', 'database');

// Query to select news articles sorted by date
$query = "SELECT * FROM news_articles ORDER BY date_published DESC";
$result = $connection->query($query);

// Loop through the results and display articles grouped by date
$current_date = '';
while ($row = $result->fetch_assoc()) {
    $date = date('Y-m-d', strtotime($row['date_published']));
    
    if ($date != $current_date) {
        echo "<h2>$date</h2>";
        $current_date = $date;
    }
    
    echo "<p>{$row['title']}</p>";
}