Are there any best practices for efficiently retrieving and displaying random data from a database in PHP?

When retrieving and displaying random data from a database in PHP, one efficient approach is to use the RAND() function in your SQL query to randomly sort the results. Additionally, you can limit the number of records returned to improve performance. Finally, cache the random data if it doesn't need to be constantly refreshed. 

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

// Query to retrieve random data
$query = "SELECT * FROM table_name ORDER BY RAND() LIMIT 5";
$result = $connection->query($query);

// Display random data
while ($row = $result->fetch_assoc()) {
    echo $row['column_name'] . "<br>";
}

// Close database connection
$connection->close();

Keywords

MySQL random data database query ORDER BY RAND() performance optimization

Related Questions