Gliph\Graph\Digraph::arcsTo PHP Method

arcsTo() public method

An arc is inbound to a vertex if that vertex is the 'head' of the arc. Returns a generator that yields 2-tuple (array) where the first two values represent the vertex pair. Vertex order is guaranteed: the first vertex is the tail, and the second vertex is the head. If the graph has additional edge data (e.g., weight), additional elements are appended to the edge array as needed. (See implementation-specific documentation for more detail).

public arcsTo ( $vertex ) : Generator
$vertex		The vertex whose in-arcs should be visited.
return	Generator	A generator that yields in-arcs as values.