function sql2single($sql) { // Execute the SQL query $result = mysqli_query($conn, $sql); // Retrieve the first (and only) row from the result set $row = mysqli_fetch_assoc($result); // Return the row's values as a single array return array_values($row); }In this example, the function takes an SQL query as a parameter and returns a single array containing the values from the first row of the result set. Note that this function assumes you are using the mysqli extension to connect to a MySQL database. If you are using a different database system, the specific functions used to execute queries and retrieve results may differ.