Say you want to display all errors on a WordPress website.
Open the config.php file and add the below code.
define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);
define('WP_DEBUG_DISPLAY', true);
@ini_set('display_errors', E_ALL);
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL & ~E_WARNING & ~E_USER_WARNING & ~E_NOTICE & ~E_USER_NOTICE & ~E_DEPRECATED & ~E_USER_DEPRECATED & ~E_STRICT);
								