original_string: public static function get_default_backup_filename($format, $type, $id, $users, $anonymised, $useidonly = false) {
          global $DB;
  
          // Calculate backup word
          $backupword = str_replace(' ', '_', core_text::strtolower(get_string('backupfilename')));
          $backupword = trim(clean_filename($backupword), '_');
  
          // Not $useidonly, lets fetch the name
          $shortname = '';
          if (!$useidonly) {
              // Calculate proper name element (based on type)
              switch ($type) {
                  case backup::TYPE_1COURSE:
                      $shortname = $DB->get_field('course', 'shortname', array('id' => $id));
                      $context = context_course::instance($id);
                      $shortname = format_string($shortname, true, array('context' => $context));
                      break;
                  case backup::TYPE_1SECTION:
                      if (!$shortname = $DB->get_field('course_sections', 'name', array('id' => $id))) {
                          $shortname = $DB->get_field('course_sections', 'section', array('id' => $id));
                      }
                      break;
                  case backup::TYPE_1ACTIVITY:
                      $cm = get_coursemodule_from_id(null, $id);
                      $shortname = $cm->modname . $id;
                      break;
              }
              $shortname = str_replace(' ', '_', $shortname);
              $shortname = core_text::strtolower(trim(clean_filename($shortname), '_'));
          }
  
          // The name will always contain the ID, but we append the course short name if requested.
          $name = $id;
          if (!$useidonly && $shortname != '') {
              $name .= '-' . $shortname;
          }
  
          // Calculate date
          $backupdateformat = str_replace(' ', '_', get_string('backupnameformat', 'langconfig'));
          $date = userdate(time(), $backupdateformat, 99, false);
          $date = core_text::strtolower(trim(clean_filename($date), '_'));
  
          // Calculate info
          $info = '';
          if (!$users) {
              $info = '-nu';
          } else if ($anonymised) {
              $info = '-an';
          }
  
          return $backupword . '-' . $format . '-' . $type . '-' .
                 $name . '-' . $date . $info . '.mbz';
      }
code: public static function get_default_backup_filename($format, $type, $id, $users, $anonymised, $useidonly = false) {
          global $DB;
  
          // Calculate backup word
          $backupword = str_replace(' ', '_', core_text::strtolower(get_string('backupfilename')));
          $backupword = trim(clean_filename($backupword), '_');
  
          // Not $useidonly, lets fetch the name
          $shortname = '';
          if (!$useidonly) {
              // Calculate proper name element (based on type)
              switch ($type) {
                  case backup::TYPE_1COURSE:
                      $shortname = $DB->get_field('course', 'shortname', array('id' => $id));
                      $context = context_course::instance($id);
                      $shortname = format_string($shortname, true, array('context' => $context));
                      break;
                  case backup::TYPE_1SECTION:
                      if (!$shortname = $DB->get_field('course_sections', 'name', array('id' => $id))) {
                          $shortname = $DB->get_field('course_sections', 'section', array('id' => $id));
                      }
                      break;
                  case backup::TYPE_1ACTIVITY:
                      $cm = get_coursemodule_from_id(null, $id);
                      $shortname = $cm->modname . $id;
                      break;
              }
              $shortname = str_replace(' ', '_', $shortname);
              $shortname = core_text::strtolower(trim(clean_filename($shortname), '_'));
          }
  
          // The name will always contain the ID, but we append the course short name if requested.
          $name = $id;
          if (!$useidonly && $shortname != '') {
              $name .= '-' . $shortname;
          }
  
          // Calculate date
          $backupdateformat = str_replace(' ', '_', get_string('backupnameformat', 'langconfig'));
          $date = userdate(time(), $backupdateformat, 99, false);
          $date = core_text::strtolower(trim(clean_filename($date), '_'));
  
          // Calculate info
          $info = '';
          if (!$users) {
              $info = '-nu';
          } else if ($anonymised) {
              $info = '-an';
          }
  
          return $backupword . '-' . $format . '-' . $type . '-' .
                 $name . '-' . $date . $info . '.mbz';
      }
code_tokens: public static function get_default_backup_filename ( $ format , $ type , $ id , $ users , $ anonymised , $ useidonly = false ) { global $ DB ; // Calculate backup word $ backupword = str_replace ( ' ' , '_' , core_text :: strtolower ( get_string ( 'backupfilename' ) ) ) ; $ backupword = trim ( clean_filename ( $ backupword ) , '_' ) ; // Not $useidonly, lets fetch the name $ shortname = '' ; if ( ! $ useidonly ) { // Calculate proper name element (based on type) switch ( $ type ) { case backup :: TYPE_1COURSE : $ shortname = $ DB -> get_field ( 'course' , 'shortname' , array ( 'id' => $ id ) ) ; $ context = context_course :: instance ( $ id ) ; $ shortname = format_string ( $ shortname , true , array ( 'context' => $ context ) ) ; break ; case backup :: TYPE_1SECTION : if ( ! $ shortname = $ DB -> get_field ( 'course_sections' , 'name' , array ( 'id' => $ id ) ) ) { $ shortname = $ DB -> get_field ( 'course_sections' , 'section' , array ( 'id' => $ id ) ) ; } break ; case backup :: TYPE_1ACTIVITY : $ cm = get_coursemodule_from_id ( null , $ id ) ; $ shortname = $ cm -> modname . $ id ; break ; } $ shortname = str_replace ( ' ' , '_' , $ shortname ) ; $ shortname = core_text :: strtolower ( trim ( clean_filename ( $ shortname ) , '_' ) ) ; } // The name will always contain the ID, but we append the course short name if requested. $ name = $ id ; if ( ! $ useidonly && $ shortname != '' ) { $ name .= '-' . $ shortname ; } // Calculate date $ backupdateformat = str_replace ( ' ' , '_' , get_string ( 'backupnameformat' , 'langconfig' ) ) ; $ date = userdate ( time ( ) , $ backupdateformat , 99 , false ) ; $ date = core_text :: strtolower ( trim ( clean_filename ( $ date ) , '_' ) ) ; // Calculate info $ info = '' ; if ( ! $ users ) { $ info = '-nu' ; } else if ( $ anonymised ) { $ info = '-an' ; } return $ backupword . '-' . $ format . '-' . $ type . '-' . $ name . '-' . $ date . $ info . '.mbz' ; }
docstring: Returns the default backup filename, based in passed params.
  
  Default format is (see MDL-22145)
  backup word - format - type - name - date - info . mbz
  where name is variable (course shortname, section name/id, activity modulename + cmid)
  and info can be (nu = no user info, an = anonymized). The last param $useidasname,
  defaulting to false, allows to replace the course shortname by the course id (used
  by automated backups, to avoid non-ascii chars in OS filesystem)
  
  @param string $format One of backup::FORMAT_
  @param string $type One of backup::TYPE_
  @param int $courseid/$sectionid/$cmid
  @param bool $users Should be true is users were included in the backup
  @param bool $anonymised Should be true is user information was anonymized.
  @param bool $useidonly only use the ID in the file name
  @return string The filename to use
docstring_tokens: Returns the default backup filename based in passed params .