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<?php |
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/** |
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* A parser for XML that uses SimpleXMLElement |
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* |
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* @package Elgg.Core |
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* @subpackage XML |
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* |
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* @see \Elgg\Integration\ElggCoreRegressionBugsTest |
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* @see \Elgg\Integration\ElggCorePluginsAPITest |
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*/ |
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class ElggXMLElement implements Serializable { |
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/** |
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* @var SimpleXMLElement |
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*/ |
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private $_element; |
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/** |
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* Creates an \ElggXMLParser from a string or existing SimpleXMLElement |
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* |
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* @param string|SimpleXMLElement $xml The XML to parse |
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*/ |
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public function __construct($xml) { |
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if ($xml instanceof SimpleXMLElement) { |
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$this->_element = $xml; |
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} else { |
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// do not load entities |
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$disable_load_entities = libxml_disable_entity_loader(true); |
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$this->_element = new SimpleXMLElement($xml); |
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libxml_disable_entity_loader($disable_load_entities); |
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} |
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} |
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/** |
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* @return string The name of the element |
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*/ |
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public function getName() { |
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return $this->_element->getName(); |
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} |
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/** |
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* @return string[] The attributes |
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*/ |
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public function getAttributes() { |
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//include namespace declarations as attributes |
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$xmlnsRaw = $this->_element->getNamespaces(); |
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$xmlns = []; |
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foreach ($xmlnsRaw as $key => $val) { |
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$label = 'xmlns' . ($key ? ":$key" : $key); |
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$xmlns[$label] = $val; |
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} |
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//get attributes and merge with namespaces |
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$attrRaw = $this->_element->attributes(); |
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$attr = []; |
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foreach ($attrRaw as $key => $val) { |
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$attr[$key] = $val; |
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} |
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$attr = array_merge((array) $xmlns, (array) $attr); |
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$result = []; |
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foreach ($attr as $key => $val) { |
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$result[$key] = (string) $val; |
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} |
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return $result; |
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} |
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/** |
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* @return string CData |
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*/ |
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public function getContent() { |
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return (string) $this->_element; |
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} |
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/** |
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* @return \ElggXMLElement[] Child elements |
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*/ |
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public function getChildren() { |
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$children = $this->_element->children(); |
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$result = []; |
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foreach ($children as $val) { |
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$result[] = new \ElggXMLElement($val); |
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} |
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return $result; |
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} |
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/** |
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* Override -> |
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* |
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* @param string $name Property name |
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* |
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* @return mixed |
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*/ |
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public function __get($name) { |
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switch ($name) { |
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case 'name': |
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return $this->getName(); |
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case 'attributes': |
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return $this->getAttributes(); |
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case 'content': |
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return $this->getContent(); |
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case 'children': |
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return $this->getChildren(); |
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} |
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return null; |
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} |
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/** |
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* Override isset |
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* |
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* @param string $name Property name |
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* |
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* @return boolean |
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*/ |
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public function __isset($name) { |
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switch ($name) { |
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case 'name': |
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return $this->getName() !== null; |
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case 'attributes': |
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return $this->getAttributes() !== null; |
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case 'content': |
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return $this->getContent() !== null; |
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case 'children': |
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return $this->getChildren() !== null; |
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} |
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return false; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function serialize() { |
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return serialize($this->getContent()); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function unserialize($serialized) { |
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$element = $this->unserialize($serialized); |
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return new static($element); |
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} |
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} |
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