posts_orderby │ filter-hook │ WP 1.5.1

Filters the ORDER BY clause of the query.

Usage

add_filter( 'posts_orderby', 'wp_kama_posts_orderby_filter' );

/**
 * Function for `posts_orderby` filter-hook.
 * 
 * @param string $orderby The ORDER BY clause of the query.
 *
 * @return string
 */
function wp_kama_posts_orderby_filter( $orderby ){

	// filter...
	return $orderby;
}

$orderby(string)

The ORDER BY clause of the query.

Changelog

Where the hook is called

$orderby = apply_filters_ref_array( 'posts_orderby', array( $orderby, &$this ) );

Where the hook is used in WordPress