original_string: public function current()
      {
          $row = parent::current();
  
          if (!$this->_validValues) {
              return $row;
          }
  
          $pointer =& $row;
          foreach ($this->_path as $step) {
              if (!isset($pointer[$step])) {
                  return $row;
              }
              $pointer =& $pointer[$step];
          }
  
          $pointer[$this->_target] = $this->_values->current();
  
          return $row;
      }
code: public function current()
      {
          $row = parent::current();
  
          if (!$this->_validValues) {
              return $row;
          }
  
          $pointer =& $row;
          foreach ($this->_path as $step) {
              if (!isset($pointer[$step])) {
                  return $row;
              }
              $pointer =& $pointer[$step];
          }
  
          $pointer[$this->_target] = $this->_values->current();
  
          return $row;
      }
code_tokens: public function current ( ) { $ row = parent :: current ( ) ; if ( ! $ this -> _validValues ) { return $ row ; } $ pointer = & $ row ; foreach ( $ this -> _path as $ step ) { if ( ! isset ( $ pointer [ $ step ] ) ) { return $ row ; } $ pointer = & $ pointer [ $ step ] ; } $ pointer [ $ this -> _target ] = $ this -> _values -> current ( ) ; return $ row ; }
docstring: Returns the current element in the target collection after inserting
  the value from the source collection into the specified path.
  
  @return mixed
docstring_tokens: Returns the current element in the target collection after inserting the value from the source collection into the specified path .