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<?php declare(strict_types=1); |
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namespace DOMWrap; |
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use DOMWrap\Traits\{ |
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CommonTrait, |
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TraversalTrait, |
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ManipulationTrait |
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}; |
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/** |
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* Document Node |
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* |
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* @package DOMWrap |
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* @license http://opensource.org/licenses/BSD-3-Clause BSD 3 Clause |
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*/ |
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class Document extends \DOMDocument |
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{ |
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use CommonTrait; |
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use TraversalTrait; |
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use ManipulationTrait; |
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/** @var int */ |
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protected $libxmlOptions = 0; |
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public function __construct(string $version = '1.0', string $encoding = 'UTF-8') { |
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parent::__construct($version, $encoding); |
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$this->registerNodeClass('DOMText', 'DOMWrap\\Text'); |
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$this->registerNodeClass('DOMElement', 'DOMWrap\\Element'); |
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$this->registerNodeClass('DOMComment', 'DOMWrap\\Comment'); |
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$this->registerNodeClass('DOMDocumentType', 'DOMWrap\\DocumentType'); |
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$this->registerNodeClass('DOMProcessingInstruction', 'DOMWrap\\ProcessingInstruction'); |
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} |
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/** |
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* Set libxml options. |
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* |
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* Multiple values must use bitwise OR. |
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* eg: LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD |
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* |
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* @link http://php.net/manual/en/libxml.constants.php |
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* |
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* @param int $libxmlOptions |
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*/ |
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public function setLibxmlOptions(int $libxmlOptions): void { |
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$this->libxmlOptions = $libxmlOptions; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function document(): ?\DOMDocument { |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function collection(): NodeList { |
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return $this->newNodeList([$this]); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function result(NodeList $nodeList) { |
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if ($nodeList->count()) { |
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return $nodeList->first(); |
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} |
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return null; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function parent() { |
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return null; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function parents() { |
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return $this->newNodeList(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function replaceWith($newNode): self { |
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$this->replaceChild($newNode, $this); |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function _clone() { |
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return null; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getHtml(): string { |
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return $this->getOuterHtml(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function setHtml($html): self { |
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if (!is_string($html) || trim($html) == '') { |
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return $this; |
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} |
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$internalErrors = libxml_use_internal_errors(true); |
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$disableEntities = libxml_disable_entity_loader(true); |
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$html = $this->convertToUtf8($html); |
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$this->loadHTML($html, $this->libxmlOptions); |
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libxml_use_internal_errors($internalErrors); |
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libxml_disable_entity_loader($disableEntities); |
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return $this; |
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} |
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private function getCharset(string $html): ?string { |
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$charset = null; |
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if (preg_match('@<meta.*?charset=["]?([^"\s]+)@im', $html, $matches)) { |
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$charset = strtoupper($matches[1]); |
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} |
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return $charset; |
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} |
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private function convertToUtf8(string $html): string { |
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if (mb_detect_encoding($html, mb_detect_order(), true) === 'UTF-8') { |
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return $html; |
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} |
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$charset = $this->getCharset($html); |
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if ($charset !== null) { |
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$html = preg_replace('@(charset=["]?)([^"\s]+)([^"]*["]?)@im', '$1UTF-8$3', $html); |
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$mbHasCharset = in_array($charset, array_map('strtoupper', mb_list_encodings())); |
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if ($mbHasCharset) { |
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$html = mb_convert_encoding($html, 'UTF-8', $charset); |
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// Fallback to iconv if available. |
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} elseif (extension_loaded('iconv')) { |
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$htmlIconv = iconv($charset, 'UTF-8', $html); |
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if ($htmlIconv !== false) { |
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$html = $htmlIconv; |
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} else { |
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$charset = null; |
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} |
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} |
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} |
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if ($charset === null) { |
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$html = mb_convert_encoding($html, 'HTML-ENTITIES', 'UTF-8'); |
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} |
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return $html; |
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} |
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} |
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scotteh /
php-dom-wrapper
