/** * 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) { $xml = $reader->readInnerXml(); if ($reader->nodeType === Reader::ELEMENT && $reader->isEmptyElement) { // Easy! $reader->next(); return null; } // Now we have a copy of the inner xml, we need to traverse it to get // all the strings. If there's no non-string data, we just return the // string, otherwise we return an instance of this class. $reader->read(); $nonText = false; $text = ''; while (true) { switch ($reader->nodeType) { case Reader::ELEMENT: $nonText = true; $reader->next(); continue 2; case Reader::TEXT: case Reader::CDATA: $text .= $reader->value; break; case Reader::END_ELEMENT: break 2; } $reader->read(); } // Make sure we advance the cursor one step further. $reader->read(); if ($nonText) { $new = new self($xml); return $new; } else { return $text; } }
/** * 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) { $result = new self($reader->readInnerXml()); $reader->next(); return $result; }