original_string: public static function get_contacts($userid, $limitfrom = 0, $limitnum = 0) {
          global $DB;
  
          $contactids = [];
          $sql = "SELECT mc.*
                    FROM {message_contacts} mc
                   WHERE mc.userid = ? OR mc.contactid = ?
                ORDER BY timecreated DESC";
          if ($contacts = $DB->get_records_sql($sql, [$userid, $userid], $limitfrom, $limitnum)) {
              foreach ($contacts as $contact) {
                  if ($userid == $contact->userid) {
                      $contactids[] = $contact->contactid;
                  } else {
                      $contactids[] = $contact->userid;
                  }
              }
          }
  
          if (!empty($contactids)) {
              list($insql, $inparams) = $DB->get_in_or_equal($contactids);
  
              $sql = "SELECT u.*, mub.id as isblocked
                        FROM {user} u
                   LEFT JOIN {message_users_blocked} mub
                          ON u.id = mub.blockeduserid
                       WHERE u.id $insql";
              if ($contacts = $DB->get_records_sql($sql, $inparams)) {
                  $arrcontacts = [];
                  foreach ($contacts as $contact) {
                      $contact->blocked = $contact->isblocked ? 1 : 0;
                      $arrcontacts[] = helper::create_contact($contact);
                  }
  
                  return $arrcontacts;
              }
          }
  
          return [];
      }
code: public static function get_contacts($userid, $limitfrom = 0, $limitnum = 0) {
          global $DB;
  
          $contactids = [];
          $sql = "SELECT mc.*
                    FROM {message_contacts} mc
                   WHERE mc.userid = ? OR mc.contactid = ?
                ORDER BY timecreated DESC";
          if ($contacts = $DB->get_records_sql($sql, [$userid, $userid], $limitfrom, $limitnum)) {
              foreach ($contacts as $contact) {
                  if ($userid == $contact->userid) {
                      $contactids[] = $contact->contactid;
                  } else {
                      $contactids[] = $contact->userid;
                  }
              }
          }
  
          if (!empty($contactids)) {
              list($insql, $inparams) = $DB->get_in_or_equal($contactids);
  
              $sql = "SELECT u.*, mub.id as isblocked
                        FROM {user} u
                   LEFT JOIN {message_users_blocked} mub
                          ON u.id = mub.blockeduserid
                       WHERE u.id $insql";
              if ($contacts = $DB->get_records_sql($sql, $inparams)) {
                  $arrcontacts = [];
                  foreach ($contacts as $contact) {
                      $contact->blocked = $contact->isblocked ? 1 : 0;
                      $arrcontacts[] = helper::create_contact($contact);
                  }
  
                  return $arrcontacts;
              }
          }
  
          return [];
      }
code_tokens: public static function get_contacts ( $ userid , $ limitfrom = 0 , $ limitnum = 0 ) { global $ DB ; $ contactids = [ ] ; $ sql = "SELECT mc.*
                    FROM {message_contacts} mc
                   WHERE mc.userid = ? OR mc.contactid = ?
                ORDER BY timecreated DESC" ; if ( $ contacts = $ DB -> get_records_sql ( $ sql , [ $ userid , $ userid ] , $ limitfrom , $ limitnum ) ) { foreach ( $ contacts as $ contact ) { if ( $ userid == $ contact -> userid ) { $ contactids [ ] = $ contact -> contactid ; } else { $ contactids [ ] = $ contact -> userid ; } } } if ( ! empty ( $ contactids ) ) { list ( $ insql , $ inparams ) = $ DB -> get_in_or_equal ( $ contactids ) ; $ sql = "SELECT u.*, mub.id as isblocked
                        FROM {user} u
                   LEFT JOIN {message_users_blocked} mub
                          ON u.id = mub.blockeduserid
                       WHERE u.id $insql" ; if ( $ contacts = $ DB -> get_records_sql ( $ sql , $ inparams ) ) { $ arrcontacts = [ ] ; foreach ( $ contacts as $ contact ) { $ contact -> blocked = $ contact -> isblocked ? 1 : 0 ; $ arrcontacts [ ] = helper :: create_contact ( $ contact ) ; } return $ arrcontacts ; } } return [ ] ; }
docstring: Returns the contacts to display in the contacts area.
  
  TODO: This function should be removed once the related web service goes through final deprecation.
  The related web service is data_for_messagearea_contacts.
  Followup: MDL-63261
  
  @param int $userid The user id
  @param int $limitfrom
  @param int $limitnum
  @return array
docstring_tokens: Returns the contacts to display in the contacts area .