original_string: public function offsetGet($index)
      {
          if (parent::offsetExists($index)) {
              return parent::offsetGet($index);
          }
          if (isset(self::$global[$index])) {
              return self::$global[$index];
          }
  
          return null;
      }
code: public function offsetGet($index)
      {
          if (parent::offsetExists($index)) {
              return parent::offsetGet($index);
          }
          if (isset(self::$global[$index])) {
              return self::$global[$index];
          }
  
          return null;
      }
code_tokens: public function offsetGet ( $ index ) { if ( parent :: offsetExists ( $ index ) ) { return parent :: offsetGet ( $ index ) ; } if ( isset ( self :: $ global [ $ index ] ) ) { return self :: $ global [ $ index ] ; } return null ; }
docstring: Return null if no value
  
  @param mixed $index
  
  @return mixed|null
docstring_tokens: Return null if no value