original_string: public function close() {
          if ($this->users_rs) {
              $this->users_rs->close();
              $this->users_rs = null;
          }
          if ($this->grades_rs) {
              $this->grades_rs->close();
              $this->grades_rs = null;
          }
          $this->gradestack = array();
      }
code: public function close() {
          if ($this->users_rs) {
              $this->users_rs->close();
              $this->users_rs = null;
          }
          if ($this->grades_rs) {
              $this->grades_rs->close();
              $this->grades_rs = null;
          }
          $this->gradestack = array();
      }
code_tokens: public function close ( ) { if ( $ this -> users_rs ) { $ this -> users_rs -> close ( ) ; $ this -> users_rs = null ; } if ( $ this -> grades_rs ) { $ this -> grades_rs -> close ( ) ; $ this -> grades_rs = null ; } $ this -> gradestack = array ( ) ; }
docstring: Close the iterator, do not forget to call this function
docstring_tokens: Close the iterator do not forget to call this function