How can PHP developers effectively troubleshoot and resolve issues with database operations in their scripts?

To effectively troubleshoot and resolve issues with database operations in PHP scripts, developers can start by checking for any error messages or exceptions thrown by the database functions. They can also enable error reporting and logging to get more detailed information about the problem. Additionally, developers can use tools like phpMyAdmin to directly interact with the database and test queries.

// Enable error reporting and logging
error_reporting(E_ALL);
ini_set('display_errors', 1);

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

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

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