Getting started
Installation
Add PHP Graphviz as a dependency to your project using Composer.
In the root directory of your project, run:
composer require alom/graphviz
Render a graph
In your project, create a file test-graphviz.php
, in the directory of your
composer.json
:
<?php
require_once __DIR__.'/vendor/autoload.php';
$graph = new Graphviz\Digraph();
$graph
->subgraph('cluster_1')
->attr('node', ['style' => 'filled', 'fillcolor' => 'blue'])
->node('A')
->node('B')
->end()
->edge(array('A', 'B', 'C'))
;
echo $graph->render();
This script, when executed, will render the following:
digraph G {
subgraph cluster_1 {
node [style=filled, fillcolor=blue];
A;
B;
}
A -> B -> C;
}
Convert graph to an image
This library only render dot language. If you want to generate an image out of it, you must install graphviz and run the following command:
php test-graphviz.php | dot -Tpng > test-graphviz.png