Comment::checkDuplicate

static function checkDuplicate(array $params = [], int &$duplicateCommentId = 0): bool
{
	$message = (
		isset($params['MESSAGE'])
		&& trim((string)$params['MESSAGE']) !== ''
			? trim((string)$params['MESSAGE'])
			: ''
	);

	$blogId = (
		isset($params['BLOG_ID'])
		&& (int)$params['BLOG_ID'] > 0
			? (int)$params['BLOG_ID']
			: 0
	);

	$postId = (
		isset($params['POST_ID'])
		&& (int)$params['POST_ID'] > 0
			? (int)$params['POST_ID']
			: 0
	);

	$authorId = (
		isset($params['AUTHOR_ID'])
		&& (int)$params['AUTHOR_ID'] > 0
			? (int)$params['AUTHOR_ID']
			: 0
	);

	if (
		$message === ''
		|| $blogId <= 0
		|| $postId <= 0
	)
	{
		return false;
	}

	CTimeZone::Disable();
	$res = CBlogComment::getList(
		[ "ID" => "DESC" ],
		[
			"BLOG_ID" => $blogId,
			"POST_ID" => $postId,
			"AUTHOR_ID" => $authorId,
			">DATE_CREATE" => ConvertTimeStamp(time() - 60*30, "FULL")
		],
		false,
		[ "nTopCount" => 1 ],
		[ 'ID', 'POST_TEXT' ]
	);
	CTimeZone::Enable();

	if (
		($duplicateComment = $res->fetch())
		&& mb_strlen($message) > 10
		&& md5((string)$duplicateComment['POST_TEXT']) === md5($message)
	)
	{
		$duplicateCommentId = (int)$duplicateComment['ID'];
		return false;
	}

	return true;
}