What is the correct syntax for selecting a database using the mysqli_select_db function in PHP?

When using the mysqli_select_db function in PHP to select a database, the correct syntax requires passing the database name as the second parameter of the function. This function is used to change the default database for subsequent queries on the connection. Make sure that the database name is a string and matches the name of the database you want to select.

// Connect to MySQL server
$connection = mysqli_connect("localhost", "username", "password");

// Check connection
if (!$connection) {
    die("Connection failed: " . mysqli_connect_error());
}

// Select a specific database
$database_name = "my_database";
mysqli_select_db($connection, $database_name);