src/View/Helper/DocumentHelper.php
protected function _assignMeta($key)
    {
        if (Arr::key($key, $this->_View->viewVars)) {
            $this->_View->assign($key, $this->_View->viewVars[$key]);
        }

        return $this;
    }
protected function _assignMeta($key)
    {
        if (Arr::key($key, $this->_View->viewVars)) {
            $this->_View->assign($key, $this->_View->viewVars[$key]);
        }

        return $this;
    }
protected function _assignMeta ( $ key ) { if ( Arr :: key ( $ key , $ this -> _View -> viewVars ) ) { $ this -> _View -> assign ( $ key , $ this -> _View -> viewVars [ $ key ] ) ; } return $ this ; }
Assign data from view vars.

@param   string $key
@return  $this
Assign data from view vars .