Where can I find reliable resources, such as the MySQL manual, for troubleshooting PHP and MySQL interactions?

When troubleshooting PHP and MySQL interactions, it is important to refer to reliable resources such as the MySQL manual to understand the correct syntax and usage of MySQL functions in PHP. By consulting these resources, you can identify any errors in your code and make necessary adjustments to ensure proper communication between PHP and MySQL.

// Connect to MySQL database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";

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

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