original_string: public static function getCampaignParameters()
      {
          $return = array(
              Config::getInstance()->Tracker['campaign_var_name'],
              Config::getInstance()->Tracker['campaign_keyword_var_name'],
          );
  
          foreach ($return as &$list) {
              if (strpos($list, ',') !== false) {
                  $list = explode(',', $list);
              } else {
                  $list = array($list);
              }
              $list = array_map('trim', $list);
          }
  
          return $return;
      }
code: public static function getCampaignParameters()
      {
          $return = array(
              Config::getInstance()->Tracker['campaign_var_name'],
              Config::getInstance()->Tracker['campaign_keyword_var_name'],
          );
  
          foreach ($return as &$list) {
              if (strpos($list, ',') !== false) {
                  $list = explode(',', $list);
              } else {
                  $list = array($list);
              }
              $list = array_map('trim', $list);
          }
  
          return $return;
      }
code_tokens: public static function getCampaignParameters ( ) { $ return = array ( Config :: getInstance ( ) -> Tracker [ 'campaign_var_name' ] , Config :: getInstance ( ) -> Tracker [ 'campaign_keyword_var_name' ] , ) ; foreach ( $ return as & $ list ) { if ( strpos ( $ list , ',' ) !== false ) { $ list = explode ( ',' , $ list ) ; } else { $ list = array ( $ list ) ; } $ list = array_map ( 'trim' , $ list ) ; } return $ return ; }
docstring: Returns the list of Campaign parameter names that will be read to classify
  a visit as coming from a Campaign
  
  @return array array(
  0 => array( ... ) // campaign names parameters
  1 => array( ... ) // campaign keyword parameters
  );
docstring_tokens: Returns the list of Campaign parameter names that will be read to classify a visit as coming from a Campaign