Some helpful settings for WordPress development, to be appended to wp-config.php

wp-config-extras.php

<?php

/** Development settings.
 *
 * These are some customs settings that allow us to import arbitrary WordPress
 * databases and run them within our development environment without any additional
 * configuration. Append this to your regular wp-config.php file and customize as needed.
 *
 * @link http://gist.github.com/gists/173574
 */

/**
 * Override, but do not overwrite the database values for, the SITE_URL setting.
 * 
 * @link http://codex.wordpress.org/Editing_wp-config.php#WordPress_address_.28URL.29
 */
define('WP_SITEURL', 'http://sub-domain.your-test-site.tld');

/**
 * Enable WordPress debug mode, which shows us more error messages and
 * info than production installations.
 * 
 * @link http://codex.wordpress.org/Editing_wp-config.php#Debug
 */
define('WP_DEBUG', true);

/**
 * Save queries for analysis/debugging
 * 
 * @link http://codex.wordpress.org/Editing_wp-config.php#Save_queries_for_analysis
 */
define('SAVEQUERIES', true);

?>