2 // 1 -[-1]-> 2 $graph = new Graph(); $v1 = $graph->createVertex(1); $v2 = $graph->createVertex(2); $e1 = $v1->createEdgeTo($v2)->setWeight(10); $e2 = $v1->createEdgeTo($v2)->setWeight(-1); $alg = $this->createAlg($v1); $alg->getEdges(); } }