site_search_columns │ filter-hook │ WP 4.6.0

Filters the columns to search in a WP_Site_Query search.

The default columns include 'domain' and 'path.

Usage

add_filter( 'site_search_columns', 'wp_kama_site_search_columns_filter', 10, 3 );

/**
 * Function for `site_search_columns` filter-hook.
 * 
 * @param string[]      $search_columns Array of column names to be searched.
 * @param string        $search         Text being searched.
 * @param WP_Site_Query $query          The current WP_Site_Query instance.
 *
 * @return string[]
 */
function wp_kama_site_search_columns_filter( $search_columns, $search, $query ){

	// filter...
	return $search_columns;
}

$search_columns(string[])

Array of column names to be searched.

$search(string)

Text being searched.

$query(WP_Site_Query)

The current WP_Site_Query instance.

Changelog

Where the hook is called

$search_columns = apply_filters( 'site_search_columns', $search_columns, $this->query_vars['search'], $this );

Where the hook is used in WordPress