private function rebuildAttrIndex(string $key)
	{
		$this->index[$key] = [];

		foreach ($this->elements as $id => $element) {
			if ($element instanceof $this->elementClassName) {
				$value = $element->getAttr($key);
				$this->index[$key][$value][$id] = $element;
			} else {
				throw new \InvalidArgumentException("Indexed element must be instance of " . $this->elementClassName);
			}
		}
	}
private function rebuildAttrIndex(string $key)
	{
		$this->index[$key] = [];

		foreach ($this->elements as $id => $element) {
			if ($element instanceof $this->elementClassName) {
				$value = $element->getAttr($key);
				$this->index[$key][$value][$id] = $element;
			} else {
				throw new \InvalidArgumentException("Indexed element must be instance of " . $this->elementClassName);
			}
		}
	}
private function rebuildAttrIndex ( string $ key ) { $ this -> index [ $ key ] = [ ] ; foreach ( $ this -> elements as $ id => $ element ) { if ( $ element instanceof $ this -> elementClassName ) { $ value = $ element -> getAttr ( $ key ) ; $ this -> index [ $ key ] [ $ value ] [ $ id ] = $ element ; } else { throw new \ InvalidArgumentException ( "Indexed element must be instance of " . $ this -> elementClassName ) ; } } }
Rebuild the entire index from provided elements.
Rebuild the entire index from provided elements .