Пример wp-config.php for Debugging

// Enable WP_DEBUG mode
 define( 'WP_DEBUG', true );
 // Enable Debug logging to the /wp-content/debug.log file
 define( 'WP_DEBUG_LOG', true );
 // Disable display of errors and warnings
 define( 'WP_DEBUG_DISPLAY', false );
 @ini_set( 'display_errors', 0 );
 // Use dev versions of core JS and CSS files (only needed if you are modifying these core files)
 define( 'SCRIPT_DEBUG', true );