PHP code example of vertilia / algo-toposort

1. Go to this page and download the library: Download vertilia/algo-toposort library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

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

vertilia / algo-toposort example snippets


$values = [
    'a' => ['b', 'd', 'c', 'e'],
    'b' => ['d'],
    'c' => ['d', 'e'],
    'd' => ['e'],
    'e' => [],
];

$a = new TopoSort($values);

$sorted = $a->sort();

print_r($sorted);


$a = new TopoSort();

$a->addNode('a', ['b', 'd', 'c', 'e'])
    ->addNode('b', ['d']),
    ->addNode('c', ['d', 'e']),
    ->addNode('d', ['e']),
    ->addNode('e', []);

$sorted = $a->sort();

print_r($sorted);


$a = new TopoSort();

$a->addLink('a', 'b')
    ->addLink('a', 'd'),
    ->addLink('a', 'c'),
    ->addLink('a', 'e'),
    ->addLink('b', 'd'),
    ->addLink('c', 'd'),
    ->addLink('c', 'e'),
    ->addLink('d', 'e');

$sorted = $a->sort();

print_r($sorted);