85 lines
1.6 KiB
PHP
85 lines
1.6 KiB
PHP
<?php
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/* Icinga Web 2 | (c) 2015 Icinga Development Team | GPLv2+ */
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namespace Icinga\Web\Dom;
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use DOMNode;
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use IteratorIterator;
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use RecursiveIterator;
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/**
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* Recursive iterator over a DOMNode
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*
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* Usage example:
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* <code>
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* <?php
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*
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* namespace Icinga\Example;
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*
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* use DOMDocument;
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* use RecursiveIteratorIterator;
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* use Icinga\Web\Dom\DomIterator;
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*
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* $doc = new DOMDocument();
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* $doc->loadHTML(...);
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* $dom = new RecursiveIteratorIterator(new DomNodeIterator($doc), RecursiveIteratorIterator::SELF_FIRST);
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* foreach ($dom as $node) {
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* ....
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* }
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* </code>
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*/
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class DomNodeIterator implements RecursiveIterator
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{
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/**
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* The node's children
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*
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* @var IteratorIterator
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*/
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protected $children;
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/**
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* Create a new iterator over a DOMNode's children
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*
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* @param DOMNode $node
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*/
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public function __construct(DOMNode $node)
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{
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$this->children = new IteratorIterator($node->childNodes);
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}
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public function current(): ?DOMNode
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{
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return $this->children->current();
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}
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public function key(): int
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{
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return $this->children->key();
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}
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public function next(): void
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{
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$this->children->next();
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}
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public function rewind(): void
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{
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$this->children->rewind();
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}
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public function valid(): bool
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{
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return $this->children->valid();
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}
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public function hasChildren(): bool
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{
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return $this->current()->hasChildNodes();
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}
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public function getChildren(): DomNodeIterator
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{
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return new static($this->current());
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}
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}
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