HtmlDocument::getMetaContent

public function getMetaContent($name)
{
	if (empty($this->metaElements))
	{
		$this->metaElements = $this->extractElementAttributes('meta');
	}
	$name = mb_strtolower($name);

	foreach ($this->metaElements as $metaElement)
	{
		if ((isset($metaElement['name']) && mb_strtolower($metaElement['name']) === $name
			|| isset($metaElement['property']) && mb_strtolower($metaElement['property']) === $name)
			&& $metaElement['content'] <> '')
		{
			return $metaElement['content'];
		}
	}

	return null;
}