Text::getSearchableNode

static function getSearchableNode($block, $selector)
{
	$searchContent = [];

	$nodes = self::getNode($block, $selector);
	foreach ($nodes as $value)
	{
		$value = self::prepareSearchContent($value);
		if ($value && !in_array($value, $searchContent))
		{
			$searchContent[] = $value;
		}
	}

	return $searchContent;
}