How can PHP developers effectively debug and troubleshoot issues related to database interactions?

To effectively debug and troubleshoot database interaction issues in PHP, developers can use tools like Xdebug for step-by-step debugging, enable error reporting to catch any PHP errors, and use SQL debugging tools to monitor and analyze database queries. Additionally, logging errors and exceptions can provide valuable insights into what went wrong during database interactions. 

// Enable error reporting
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);
}

Keywords

SQL injection PDO error handling database connection query optimization

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