Iterators for PHP XMLReader for ease of parsing

Changelog:

• 0.1.7 maintenance release with fixes.

• 0.1.6 maintenance release with fixes. added xml-file-scanner command-line tool example.

• 0.1.5 maintenance release with tests and new XMLReaderNextIteration to iterate in XMLReader::next() fashion.

• 0.1.4 maintenance release with fixes.

• 0.1.3 added XMLSequenceStream, a PHP stream wrapper to read XML from files which are a sequence of XML documents. Works transparently with XMLReader.

• 0.1.2 added XMLWritingIteration, an iteration to write with XMLWriter from XMLReader.

• 0.1.0 composer support has been added.

• 0.0.23 first try of a compatibility layer for PHP installs with a libxml version below version 2.6.20. Functions with compatibility checks are XMLReaderNode::readOuterXml() and XMLReaderNode::readString().

• 0.0.21 moved library into new repository and added XMLReaderAggregate.

• 0.0.19 added XMLElementXpathFilter, a FilterIterator for XMLReaderIterator by an Xpath expression.

   $reader = new XMLReader();
   $reader->open($xmlFile);
   $it = new XMLElementIterator($reader);
   $list = new XMLElementXpathFilter($it, '//user[@id = "1" or @id = "6"]//message');
  
   foreach($list as $message) {
       echo " * ",  $message->readString(), "\n";
   }
  

Code examples for the XMLReader Iterators (latests on top):

• How to distinguish between empty element and null-size string in DOMDocument?
• PHP XML parser: How to read only part of the XML document?
• Parse XML with PHP and XMLReader
• Getting XML Attribute with XMLReader and PHP