saveHTML($node);
}
return $node->ownerDocument->saveHTML($node);
}
public static function parse(string $html, ?string $encoding = null): DOMDocument
{
$detected = $encoding ?? mb_detect_encoding($html);
if ($detected) {
$html = mb_encode_numericentity($html, [0x80, 0xFFFFFF, 0, -1], $detected);
}
$document = self::createDOMDocument($html);
$xpath = new DOMXPath($document);
$charset = $xpath->query('.//meta[@charset]')->item(0);
$httpEquiv = $xpath->query('.//meta[@http-equiv]')->item(0);
if ($charset || $httpEquiv) {
$charset = $charset ? self::stringify($charset) : null;
$httpEquiv = $httpEquiv ? self::stringify($httpEquiv) : null;
$html = preg_replace(
'/]*>/',
''.$charset.$httpEquiv,
$html
);
return self::createDOMDocument($html);
}
return $document;
}
public static function parseFragment(string $html, ?string $encoding = null): DOMDocumentFragment
{
$html = "{$html}";
$document = static::parse($html, $encoding);
$fragment = $document->createDocumentFragment();
$body = $document->getElementsByTagName('body')->item(0);
$nodes = [];
foreach ($body->childNodes as $node) {
$nodes[] = $node;
}
foreach ($nodes as $node) {
$fragment->appendChild($node);
}
return $fragment;
}
private static function createDOMDocument(string $code): DOMDocument
{
$errors = libxml_use_internal_errors(true);
// Enabled by default in PHP 8
if (PHP_MAJOR_VERSION < 8) {
$entities = libxml_disable_entity_loader(true);
}
$document = new DOMDocument();
$document->loadHTML($code);
libxml_use_internal_errors($errors);
if (PHP_MAJOR_VERSION < 8) {
libxml_disable_entity_loader($entities);
}
if (libxml_get_last_error() !== false) {
libxml_clear_errors();
}
return $document;
}
}