public function offsetUnset($index)
    {
        $this->changed = true;
        $this->unregisterFoundToken($this[$index]);
        parent::offsetUnset($index);
    }
public function offsetUnset($index)
    {
        $this->changed = true;
        $this->unregisterFoundToken($this[$index]);
        parent::offsetUnset($index);
    }
public function offsetUnset ( $ index ) { $ this -> changed = true ; $ this -> unregisterFoundToken ( $ this [ $ index ] ) ; parent :: offsetUnset ( $ index ) ; }
Unset collection item.

@param int $index
Unset collection item .