* @param array $opts Options array
* @return array Options array with processed start and end date filter options
*/
- public static function processDateFilter( $opts ) {
+ public static function processDateFilter( array $opts ) {
$start = isset( $opts['start'] ) ? $opts['start'] : '';
$end = isset( $opts['end'] ) ? $opts['end'] : '';
$year = isset( $opts['year'] ) ? $opts['year'] : '';