public function getByLabel($label)
    {
        return isset($this->items[$label]) ? $this->items[$label] : null;
    }
public function getByLabel($label)
    {
        return isset($this->items[$label]) ? $this->items[$label] : null;
    }
public function getByLabel ( $ label ) { return isset ( $ this -> items [ $ label ] ) ? $ this -> items [ $ label ] : null ; }
Returns user data item by its label.

@param string $label
@return UserDataItem|null
Returns user data item by its label .