WP DEBUG

wp-config.php

<?php // do not include leading php tag

/**
 * For developers: WordPress debugging mode.
 *
 * Change this to true to enable the display of notices during development.
 * It is strongly recommended that plugin and theme developers use WP_DEBUG
 * in their development environments.
 */
define('WP_DEBUG', true);
if (WP_DEBUG) {
	define('SCRIPT_DEBUG', true);
	define('JETPACK_DEV_DEBUG', true);
	define('WP_DEBUG_LOG', false);
	define('WP_DEBUG_DISPLAY', false);
}