original_string: public function get_revision() {
          global $CFG;
          if (empty($CFG->langstringcache)) {
              return -1;
          }
          if (isset($CFG->langrev)) {
              return (int)$CFG->langrev;
          } else {
              return -1;
          }
      }
code: public function get_revision() {
          global $CFG;
          if (empty($CFG->langstringcache)) {
              return -1;
          }
          if (isset($CFG->langrev)) {
              return (int)$CFG->langrev;
          } else {
              return -1;
          }
      }
code_tokens: public function get_revision ( ) { global $ CFG ; if ( empty ( $ CFG -> langstringcache ) ) { return - 1 ; } if ( isset ( $ CFG -> langrev ) ) { return ( int ) $ CFG -> langrev ; } else { return - 1 ; } }
docstring: Returns string revision counter, this is incremented after any string cache reset.
  @return int lang string revision counter, -1 if unknown
docstring_tokens: Returns string revision counter this is incremented after any string cache reset .