UsageStatTable::incrementByCount

static function incrementByCount($entityType, $entityId, $subEntityType, $subEntityName, int $count)
{
	$entityKey = static::getEntityKey($entityType, $entityId, $subEntityType, $subEntityName);
	if (!isset(static::$data[$entityKey]))
	{
		static::$data[$entityKey] = 0;
	}
	static::$data[$entityKey] += $count;
}