What resources or guides are available for debugging PHP code effectively?

To debug PHP code effectively, developers can utilize various resources and guides such as PHP's built-in error reporting functions, debugging tools like Xdebug, logging libraries like Monolog, and online communities like Stack Overflow for troubleshooting assistance and best practices.

// Example code snippet using PHP's built-in error reporting function
error_reporting(E_ALL);
ini_set('display_errors', 1);