use Fhaculty\Graph\Graph; $graph = new Graph(); $node1 = $graph->createVertex('A'); $node2 = $graph->createVertex('B'); $node3 = $graph->createVertex('C'); $node4 = $graph->createVertex('D'); $node1->createEdgeTo($node2)->setWeight(1); $node1->createEdgeTo($node3)->setWeight(3); $node2->createEdgeTo($node4)->setWeight(2); $node3->createEdgeTo($node4)->setWeight(4); $path = $graph->getVertex('A')->getEdgesTo($graph->getVertex('D'))->getEdgeWithMinWeight()->getAttribute('weight');
use Fhaculty\Graph\Graph; $graph = new Graph(); $node1 = $graph->createVertex('A'); $node2 = $graph->createVertex('B'); $node3 = $graph->createVertex('C'); $node4 = $graph->createVertex('D'); $node1->createEdgeTo($node2); $node2->createEdgeTo($node3); $node3->createEdgeTo($node4); $node4->createEdgeTo($node1); $isCyclic = $graph->hasCycle();
use Fhaculty\Graph\Graph; $graph = new Graph(); $node1 = $graph->createVertex('A'); $node2 = $graph->createVertex('B'); $node3 = $graph->createVertex('C'); $node4 = $graph->createVertex('D'); $node1->createEdgeTo($node2); $node1->createEdgeTo($node3); $node2->createEdgeTo($node4); $node3->createEdgeTo($node4); $sort = $graph->createDirectedAcyclicGraph()->getVerticesTopological();This code creates a directed acyclic graph with four nodes and four edges. Then, it computes the topological sort of the graph, which is a linear ordering of its nodes such that for every directed edge (u, v), node u comes before node v in the ordering. In conclusion, PHP Graph is a powerful package library that allows developers to work with different types of graphs and solve a variety of problems related to graph theory. It provides a set of simple APIs that can be used to create, manipulate, and analyze graphs in PHP.