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<?php
declare(strict_types=1);
namespace voku\helper;
/**
* {@inheritdoc}
*/
class SimpleXmlDomNode extends AbstractSimpleXmlDomNode implements SimpleXmlDomNodeInterface
{
/**
* Find list of nodes with a CSS or xPath selector.
*
* @param string $selector
* @param int|null $idx
*
* @return SimpleXmlDomNodeInterface<SimpleXmlDomInterface>|SimpleXmlDomNodeInterface[]|null
*/
public function find(string $selector, $idx = null)
{
// init
$elements = new static();
foreach ($this as $node) {
\assert($node instanceof SimpleXmlDomInterface);
foreach ($node->find($selector) as $res) {
$elements->append($res);
}
}
// return all elements
if ($idx === null) {
if (\count($elements) === 0) {
return new SimpleXmlDomNodeBlank();
}
return $elements;
}
// handle negative values
if ($idx < 0) {
$idx = \count($elements) + $idx;
}
// return one element
return $elements[$idx] ?? null;
}
/**
* Find nodes with a CSS or xPath selector.
*
* @param string $selector
*
* @return SimpleXmlDomInterface[]|SimpleXmlDomNodeInterface<SimpleXmlDomInterface>
*/
public function findMulti(string $selector): SimpleXmlDomNodeInterface
{
return $this->find($selector, null);
}
/**
* Find nodes with a CSS or xPath selector.
*
* @param string $selector
*
* @return false|SimpleXmlDomInterface[]|SimpleXmlDomNodeInterface<SimpleXmlDomInterface>
*/
public function findMultiOrFalse(string $selector)
{
$return = $this->find($selector, null);
if ($return instanceof SimpleXmlDomNodeBlank) {
return false;
}
return $return;
}
/**
* Find one node with a CSS or xPath selector.
*
* @param string $selector
*
* @return SimpleXmlDomNodeInterface<SimpleXmlDomInterface>
*/
public function findOne(string $selector)
{
$return = $this->find($selector, 0);
return $return ?? new SimpleXmlDomNodeBlank();
}
/**
* Find one node with a CSS or xPath selector or false, if no element is found.
*
* @param string $selector
*
* @return false|SimpleXmlDomNodeInterface<SimpleXmlDomInterface>
*/
public function findOneOrFalse(string $selector)
{
$return = $this->find($selector, 0);
return $return ?? false;
}
/**
* Get html of elements.
*
* @return string[]
*/
public function innerHtml(): array
{
// init
$html = [];
foreach ($this as $node) {
$html[] = $node->outertext;
}
return $html;
}
/**
* alias for "$this->innerHtml()" (added for compatibly-reasons with v1.x)
*
* @return string[]
*/
public function innertext()
{
return $this->innerHtml();
}
/**
* alias for "$this->innerHtml()" (added for compatibly-reasons with v1.x)
*
* @return string[]
*/
public function outertext()
{
return $this->innerHtml();
}
/**
* Get plain text.
*
* @return string[]
*/
public function text(): array
{
// init
$text = [];
foreach ($this as $node) {
$text[] = $node->plaintext;
}
return $text;
}
}