public function get_time_period() {
        $period = $this->data[Parser::INDEX_LISTS_TIME_PERIOD][0]['value'];
        return substr($period, strpos($period, Parser::INDEX_TIME_PERIOD) + strlen(Parser::INDEX_TIME_PERIOD));
    }
public function get_time_period() {
        $period = $this->data[Parser::INDEX_LISTS_TIME_PERIOD][0]['value'];
        return substr($period, strpos($period, Parser::INDEX_TIME_PERIOD) + strlen(Parser::INDEX_TIME_PERIOD));
    }
public function get_time_period ( ) { $ period = $ this -> data [ Parser :: INDEX_LISTS_TIME_PERIOD ] [ 0 ] [ 'value' ] ; return substr ( $ period , strpos ( $ period , Parser :: INDEX_TIME_PERIOD ) + strlen ( Parser :: INDEX_TIME_PERIOD ) ) ; }
Which time period is this list in?
Which time period is this list in?