PHP Reader::parseCurrentElement方法代码示例

 /**
  * The deserialize method is called during xml parsing.
  *
  * This method is called staticly, this is because in theory this method
  * may be used as a type of constructor, or factory method.
  *
  * Often you want to return an instance of the current class, but you are
  * free to return other data as well.
  *
  * Important note 2: You are responsible for advancing the reader to the
  * next element. Not doing anything will result in a never-ending loop.
  *
  * If you just want to skip parsing for this element altogether, you can
  * just call $reader->next();
  *
  * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
  * the next element.
  *
  * @param XML\Reader $reader
  *
  * @return mixed
  */
 static function xmlDeserialize(SabreXml\Reader $reader)
 {
     // If there's no children, we don't do anything.
     if ($reader->isEmptyElement) {
         $reader->next();
         return [];
     }
     $values = [];
     $reader->read();
     do {
         if ($reader->nodeType === SabreXml\Reader::ELEMENT) {
             $name = $reader->localName;
             $values[$name] = $reader->parseCurrentElement()['value'];
         } else {
             $reader->read();
         }
     } while ($reader->nodeType !== SabreXml\Reader::END_ELEMENT);
     $reader->read();
     return $values;
 }

 /**
  * The deserialize method is called during xml parsing.
  *
  * This method is called statictly, this is because in theory this method
  * may be used as a type of constructor, or factory method.
  *
  * Often you want to return an instance of the current class, but you are
  * free to return other data as well.
  *
  * You are responsible for advancing the reader to the next element. Not
  * doing anything will result in a never-ending loop.
  *
  * If you just want to skip parsing for this element altogether, you can
  * just call $reader->next();
  *
  * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
  * the next element.
  *
  * @param Reader $reader
  * @return mixed
  */
 static function xmlDeserialize(Reader $reader)
 {
     $reader->pushContext();
     $reader->elementMap['{DAV:}propstat'] = 'Sabre\\Xml\\Element\\KeyValue';
     // We are overriding the parser for {DAV:}prop. This deserializer is
     // almost identical to the one for Sabre\Xml\Element\KeyValue.
     //
     // The difference is that if there are any child-elements inside of
     // {DAV:}prop, that have no value, normally any deserializers are
     // called. But we don't want this, because a singular element without
     // child-elements implies 'no value' in {DAV:}prop, so we want to skip
     // deserializers and just set null for those.
     $reader->elementMap['{DAV:}prop'] = function (Reader $reader) {
         if ($reader->isEmptyElement) {
             $reader->next();
             return [];
         }
         $values = [];
         $reader->read();
         do {
             if ($reader->nodeType === Reader::ELEMENT) {
                 $clark = $reader->getClark();
                 if ($reader->isEmptyElement) {
                     $values[$clark] = null;
                     $reader->next();
                 } else {
                     $values[$clark] = $reader->parseCurrentElement()['value'];
                 }
             } else {
                 $reader->read();
             }
         } while ($reader->nodeType !== Reader::END_ELEMENT);
         $reader->read();
         return $values;
     };
     $elems = $reader->parseInnerTree();
     $reader->popContext();
     $href = null;
     $propertyLists = [];
     $statusCode = null;
     foreach ($elems as $elem) {
         switch ($elem['name']) {
             case '{DAV:}href':
                 $href = $elem['value'];
                 break;
             case '{DAV:}propstat':
                 $status = $elem['value']['{DAV:}status'];
                 list(, $status, ) = explode(' ', $status, 3);
                 $properties = isset($elem['value']['{DAV:}prop']) ? $elem['value']['{DAV:}prop'] : [];
                 $propertyLists[$status] = $properties;
                 break;
             case '{DAV:}status':
                 list(, $statusCode, ) = explode(' ', $elem['value'], 3);
                 break;
         }
     }
     return new self($href, $propertyLists, $statusCode);
 }

 /**
  * The deserialize method is called during xml parsing.
  *
  * This method is called staticly, this is because in theory this method
  * may be used as a type of constructor, or factory method.
  *
  * Often you want to return an instance of the current class, but you are
  * free to return other data as well.
  *
  * Important note 2: You are responsible for advancing the reader to the
  * next element. Not doing anything will result in a never-ending loop.
  *
  * If you just want to skip parsing for this element altogether, you can
  * just call $reader->next();
  *
  * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
  * the next element.
  *
  * @param XML\Reader $reader
  * @return mixed
  */
 public static function deserializeXml(XML\Reader $reader)
 {
     // If there's no children, we don't do anything.
     if ($reader->isEmptyElement) {
         $reader->next();
         return [];
     }
     $values = [];
     $reader->read();
     do {
         if ($reader->nodeType === XML\Reader::ELEMENT) {
             $clark = $reader->getClark();
             $values[$clark] = $reader->parseCurrentElement()['value'];
         } else {
             $reader->read();
         }
     } while ($reader->nodeType !== XML\Reader::END_ELEMENT);
     $reader->read();
     return $values;
 }

/**
 * The valueObject deserializer turns an xml element into a PHP object of
 * a specific class.
 *
 * This is primarily used by the mapValueObject function from the Service
 * class, but it can also easily be used for more specific situations.
 *
 * @param Reader $reader
 * @param string $className
 * @param string $namespace
 * @return object
 */
function valueObject(Reader $reader, $className, $namespace)
{
    $valueObject = new $className();
    if ($reader->isEmptyElement) {
        $reader->next();
        return $valueObject;
    }
    $defaultProperties = get_class_vars($className);
    $reader->read();
    do {
        if ($reader->nodeType === Reader::ELEMENT && $reader->namespaceURI == $namespace) {
            if (property_exists($valueObject, $reader->localName)) {
                if (is_array($defaultProperties[$reader->localName])) {
                    $valueObject->{$reader->localName}[] = $reader->parseCurrentElement()['value'];
                } else {
                    $valueObject->{$reader->localName} = $reader->parseCurrentElement()['value'];
                }
            } else {
                // Ignore property
                $reader->next();
            }
        } else {
            $reader->read();
        }
    } while ($reader->nodeType !== Reader::END_ELEMENT);
    $reader->read();
    return $valueObject;
}