belongs to. */ public string $group = ''; /** * The original name="…" attribute of a , or null for anonymous, unnamed references. * Guaranteed to never be empty or "0". These are not valid names. */ public ?string $name = null; /** * Sequence number per {@see $group}, starting from 1. To be used in the footnote marker, * e.g. "[1]". */ public int $numberInGroup = 1; /** * Sequence number per subref set, starting from 1. Used in * hierarchical footnote numbering, eg. "[1.1]". */ public ?int $subrefIndex = null; /** * Global, unique sequence number for each , no matter which group, starting from 1. * 0 is invalid. Currently unused. */ public int $globalId; /** * True if this was a main ref artificially split from a main+details in the article. */ public bool $isMainWithDetails = false; /** * @var Element[] Collection of footnote markers that have been generated so far for the same * reference. Mainly used to track errors and render them in the reference list, instead of next * to (or instead of) the footnote marker. Can be empty in case of not-yet used or unused * list-defined references, or sub-reference parents. */ public array $nodes = []; /** @var string[] */ public array $embeddedNodes = []; public int $visibleNodes = 0; }