How can beginners in PHP improve their understanding of SQL queries for sorting data in MySQL databases?

Beginners in PHP can improve their understanding of SQL queries for sorting data in MySQL databases by practicing writing and executing different types of sorting queries. They can also refer to online tutorials and documentation to learn about the various sorting functions and clauses available in SQL. Additionally, beginners can experiment with sample databases and datasets to gain hands-on experience with sorting data using PHP and MySQL.

<?php
// Connect to the database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// SQL query to select data from a table and sort it by a specific column
$sql = "SELECT * FROM users ORDER BY username ASC";

$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // Output data of each row
    while($row = $result->fetch_assoc()) {
        echo "ID: " . $row["id"]. " - Username: " . $row["username"]. "<br>";
    }
} else {
    echo "0 results";
}

$conn->close();
?>