Seo::setKeywords

public function setKeywords($value)
{
	if (is_array($value))
	{
		$value = array_filter($value, [__CLASS__, 'clearValues'], ARRAY_FILTER_USE_BOTH);
		$value = implode(', ', $value);
	}
	if (is_string($value))
	{
		$this->setProperty(self::KEYWORDS, strip_tags(trim($value)));
	}
}