Edit File: PreOrderVisitor.php
<?php /** * Copyright (c) 2013-2024 Nicolò Martini * * For the full copyright and license information, please view * the LICENSE.md file that was distributed with this source code. * * @see https://github.com/nicmart/Tree */ namespace Tree\Visitor; use Tree\Node\NodeInterface; class PreOrderVisitor implements Visitor { /** * @return array<int, NodeInterface> $node */ public function visit(NodeInterface $node): array { $nodes = [ $node, ]; foreach ($node->getChildren() as $child) { $nodes = \array_merge( $nodes, $child->accept($this), ); } return $nodes; } }
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