Docx::getPlaceholders

public function getPlaceholders(): array
{
	$placeholders = [];

	if($this->isFileProcessable() && $this->open() === true)
	{
		$this->fillInnerDocuments();
		foreach($this->innerDocuments as $path => $data)
		{
			$document = $data['document'];
			/** @var DocxXml $document */
			$placeholders += $document->getPlaceholders();
		}
	}

	return $placeholders;
}