PHP code example of wazum / php-dag

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

wazum / php-dag example snippets

use PhpDag\AsciiDag;
use PhpDag\Graph\{Graph, Node, Edge};

$graph = new Graph();
$graph->addNode(new Node('A', 'Start'))
      ->addNode(new Node('B', 'End'))
      ->addEdge(new Edge('A', 'B'));

echo AsciiDag::default()->render($graph);

$graph = Graph::fromEdges(
    nodes: ['a' => 'Start', 'b' => 'Build', 'c' => 'Deploy'],
    edges: [['a', 'b'], ['b', 'c']],
);

$graph = (new Graph())
    ->connect('build', 'test')
    ->connect('test', 'deploy');

$graph->successors('build');     // direct child node ids
$graph->predecessors('deploy');  // direct parent node ids
$graph->outgoingEdges('build');  // outgoing Edge objects
$graph->incomingEdges('deploy'); // incoming Edge objects
$graph->roots();                 // node ids with no incoming edges
$graph->leaves();                // node ids with no outgoing edges
$graph->descendants('build');    // all children, direct and indirect
$graph->ancestors('deploy');     // all parents, direct and indirect
$graph->shortestPath('build', 'deploy'); // node ids, or null
$graph->topologicalOrder();      // throws LogicException on a cycle
$graph->nodeCount();
$graph->edgeCount();

$graph = new Graph();
$graph->addNode(new Node('A', 'Hub'))
      ->addNode(new Node('B', 'Task 1'))
      ->addNode(new Node('C', 'Task 2'))
      ->addNode(new Node('D', 'Task 3'))
      ->addEdge(new Edge('A', 'B'))
      ->addEdge(new Edge('A', 'C'))
      ->addEdge(new Edge('A', 'D'));

echo AsciiDag::default()->render($graph);

$graph = new Graph();
$graph->addNode(new Node('ci', 'CI Pipeline'))
      ->addNode(new Node('lint', 'Lint'))
      ->addNode(new Node('test', 'Unit Tests'))
      ->addNode(new Node('build', 'Build'))
      ->addNode(new Node('deploy', 'Deploy'))
      ->addEdge(new Edge('ci', 'lint'))
      ->addEdge(new Edge('ci', 'test'))
      ->addEdge(new Edge('lint', 'build'))
      ->addEdge(new Edge('test', 'build'))
      ->addEdge(new Edge('build', 'deploy'));

echo AsciiDag::default()->render($graph);

use PhpDag\Graph\NodeStyle;
use PhpDag\Style\BorderStyle;

new Node('a', 'Rounded', style: new NodeStyle(borderStyle: BorderStyle::Rounded));
new Node('b', 'Solid',   style: new NodeStyle(borderStyle: BorderStyle::Solid));
new Node('c', 'Double',  style: new NodeStyle(borderStyle: BorderStyle::Double));
new Node('d', 'Dashed',  style: new NodeStyle(borderStyle: BorderStyle::Dashed));
new Node('e', 'Dotted',  style: new NodeStyle(borderStyle: BorderStyle::Dotted));

use PhpDag\Graph\Badge;

$graph = new Graph();
$graph->addNode(new Node('db', 'Database', ['PostgreSQL', 'Port 5432'],
    style: new NodeStyle(borderStyle: BorderStyle::Double, titleBodySeparator: true),
));
$graph->addNode(new Node('api', 'API Server', ['PHP 8.2'],
    style: new NodeStyle(badge: new Badge('v2')),
));
$graph->addEdge(new Edge('db', 'api'));

echo AsciiDag::default()->render($graph);

use PhpDag\Style\EdgeStrokeStyle;

new Edge('A', 'B', EdgeStrokeStyle::Solid);   // │ ─ (default)
new Edge('A', 'B', EdgeStrokeStyle::Heavy);   // ┃ ━
new Edge('A', 'B', EdgeStrokeStyle::Dashed);  // ╎ ╌
new Edge('A', 'B', EdgeStrokeStyle::Dotted);  // ┊ ┈
new Edge('A', 'B', EdgeStrokeStyle::Double);  // ║ ═

use PhpDag\Graph\Label;

$graph = new Graph();
$graph->addNode(new Node('review', 'Review'))
      ->addNode(new Node('approve', 'Approve'))
      ->addNode(new Node('reject', 'Reject'))
      ->addEdge(new Edge('review', 'approve', label: new Label('yes')))
      ->addEdge(new Edge('review', 'reject', label: new Label('no')));

echo AsciiDag::default()->render($graph);

$graph = new Graph();
$graph->addNode(new Node('review', 'Review'))
      ->addNode(new Node('approve', 'Approve'))
      ->addNode(new Node('reject', 'Reject'))
      ->addNode(new Node('done', 'Done'))
      ->addEdge(new Edge('review', 'approve', label: new Label('yes')))
      ->addEdge(new Edge('review', 'reject', label: new Label('no')))
      ->addEdge(new Edge('approve', 'done'))
      ->addEdge(new Edge('reject', 'done'));

echo AsciiDag::builder()->leftToRight()->build()->render($graph);

$graph = new Graph();
$graph->addNode(new Node('app', 'my-app'))
      ->addNode(new Node('fw', 'framework'))
      ->addNode(new Node('http', 'http-client'))
      ->addNode(new Node('log', 'logger'))
      ->addEdge(new Edge('app', 'fw'))
      ->addEdge(new Edge('app', 'http'))
      ->addEdge(new Edge('fw', 'log'));
$graph->highlightPath(['app', 'fw', 'log'], EdgeStrokeStyle::Double);

echo AsciiDag::default()->render($graph);

use PhpDag\Style\AnsiColor;

$graph->colorPath(['A', 'B'], AnsiColor::Red);

echo AsciiDag::builder()->ansi()->build()->render($graph);

use PhpDag\Graph\Group;

$graph->addGroup(new Group('quality', 'Quality', ['lint', 'test']));

echo AsciiDag::default()->render($graph);

$graph = Graph::fromDot('digraph { rankdir=LR; a -> b [label="ok"]; }');

echo AsciiDag::default()->render($graph);

$dot = $graph->toDot();   // back to Graphviz

echo AsciiDag::builder()->nodeSpacing(4)->rankSpacing(3)->build()->render($graph);

use PhpDag\Layout\LayoutQuality;

echo AsciiDag::builder()->quality(LayoutQuality::Fast)->build()->render($graph);

echo AsciiDag::builder()->asciiGlyphs()->build()->render($graph);

use PhpDag\Layout\LayerAssigner;

$pipeline = AsciiDag::builder()->defaultPipeline();
$pipeline->insertAfter(LayerAssigner::class, new MyCustomProcessor());
$pipeline->replace(LayerAssigner::class, new LayerAssigner(new MyLayering()));

echo AsciiDag::builder()->withPipeline($pipeline)->build()->render($graph);

$graph = new Graph();
$graph->addNode(new Node('a', 'Start'))
      ->addNode(new Node('b', 'Process'))
      ->addNode(new Node('c', 'End'))
      ->addEdge(new Edge('a', 'b'))
      ->addEdge(new Edge('b', 'c'))
      ->addEdge(new Edge('c', 'a'));

echo AsciiDag::default()->render($graph);

$result = AsciiDag::default()->layout($graph);

echo $result->render();      // the diagram as a string
$width  = $result->width();  // width in columns
$height = $result->height(); // height in rows

$result->renderTo(STDOUT);
// or a file: $result->renderTo(fopen('graph.txt', 'wb'));

bash
terraform graph | php-dag --direction=lr

bash
composer 

bash
vendor/bin/php-dag deps.dot
terraform graph | vendor/bin/php-dag --direction=lr
vendor/bin/php-dag --ascii deps.dot > graph.txt

bash
php bin/console workflow:dump blog_publishing | vendor/bin/php-dag