C:/xampp/htdocs/moodle/lib/zend/Zend/Amf/Parse/Amf0/Deserializer.php

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<?php
require_once 'Zend/Amf/Constants.php';

require_once 'Zend/Amf/Parse/Deserializer.php';

class Zend_Amf_Parse_Amf0_Deserializer extends Zend_Amf_Parse_Deserializer
{
    protected $_reference = array();

    protected $_objectEncoding = Zend_Amf_Constants::AMF0_OBJECT_ENCODING;

    public function readTypeMarker($typeMarker = null)
    {
        if ($typeMarker === null) {
            $typeMarker = $this->_stream->readByte();
        }

        switch($typeMarker) {
            // number
            case Zend_Amf_Constants::AMF0_NUMBER:
                return $this->_stream->readDouble();

            // boolean
            case Zend_Amf_Constants::AMF0_BOOLEAN:
                return (boolean) $this->_stream->readByte();

            // string
            case Zend_Amf_Constants::AMF0_STRING:
                return $this->_stream->readUTF();

            // object
            case Zend_Amf_Constants::AMF0_OBJECT:
                return $this->readObject();

            // null
            case Zend_Amf_Constants::AMF0_NULL:
                return null;

            // undefined
            case Zend_Amf_Constants::AMF0_UNDEFINED:
                return null;

            // Circular references are returned here
            case Zend_Amf_Constants::AMF0_REFERENCE:
                return $this->readReference();

            // mixed array with numeric and string keys
            case Zend_Amf_Constants::AMF0_MIXEDARRAY:
                return $this->readMixedArray();

            // array
            case Zend_Amf_Constants::AMF0_ARRAY:
                return $this->readArray();

            // date
            case Zend_Amf_Constants::AMF0_DATE:
                return $this->readDate();

            // longString  strlen(string) > 2^16
            case Zend_Amf_Constants::AMF0_LONGSTRING:
                return $this->_stream->readLongUTF();

            //internal AS object,  not supported
            case Zend_Amf_Constants::AMF0_UNSUPPORTED:
                return null;

            // XML
            case Zend_Amf_Constants::AMF0_XML:
                return $this->readXmlString();

            // typed object ie Custom Class
            case Zend_Amf_Constants::AMF0_TYPEDOBJECT:
                return $this->readTypedObject();

            //AMF3-specific
            case Zend_Amf_Constants::AMF0_AMF3:
                return $this->readAmf3TypeMarker();

            default:
                require_once 'Zend/Amf/Exception.php';
                throw new Zend_Amf_Exception('Unsupported marker type: ' . $typeMarker);
        }
    }

    public function readObject($object = null)
    {
        if ($object === null) {
            $object = array();
        }

        while (true) {
            $key        = $this->_stream->readUTF();
            $typeMarker = $this->_stream->readByte();
            if ($typeMarker != Zend_Amf_Constants::AMF0_OBJECTTERM ){
                //Recursivly call readTypeMarker to get the types of properties in the object
                $object[$key] = $this->readTypeMarker($typeMarker);
            } else {
                //encountered AMF object terminator
                break;
            }
        }
        $this->_reference[] = $object;
        return (object) $object;
    }

    public function readReference()
    {
        $key = $this->_stream->readInt();
        if (!array_key_exists($key, $this->_reference)) {
            require_once 'Zend/Amf/Exception.php';
            throw new Zend_Amf_Exception('Invalid reference key: '. $key);
        }
        return $this->_reference[$key];
    }

    public function readMixedArray()
    {
        $length = $this->_stream->readLong();
        return $this->readObject();
    }

    public function readArray()
    {
        $length = $this->_stream->readLong();
        $array = array();
        while ($length--) {
            $array[] = $this->readTypeMarker();
        }
        return $array;
    }

    public function readDate()
    {
        // get the unix time stamp. Not sure why ActionScript does not use
        // milliseconds
        $timestamp = floor($this->_stream->readDouble() / 1000);

        // The timezone offset is never returned to the server; it is always 0,
        // so read and ignore.
        $offset = $this->_stream->readInt();

        require_once 'Zend/Date.php';
        $date   = new Zend_Date($timestamp);
        return $date;
    }

    public function readXmlString()
    {
        $string = $this->_stream->readLongUTF();
        return simplexml_load_string($string);
    }

    public function readTypedObject()
    {
         require_once 'Zend/Amf/Parse/TypeLoader.php';
        // get the remote class name
        $className = $this->_stream->readUTF();
        $loader = Zend_Amf_Parse_TypeLoader::loadType($className);
        $returnObject = new $loader();
        $properties = get_object_vars($this->readObject());
        foreach($properties as $key=>$value) {
            if($key) {
                $returnObject->$key = $value;
            }
        }
        if($returnObject instanceof Zend_Amf_Value_Messaging_ArrayCollection) {
            $returnObject = get_object_vars($returnObject);
        }
        return $returnObject;
    }

    public function readAmf3TypeMarker()
    {
        require_once 'Zend/Amf/Parse/Amf3/Deserializer.php';
        $deserializer = new Zend_Amf_Parse_Amf3_Deserializer($this->_stream);
        $this->_objectEncoding = Zend_Amf_Constants::AMF3_OBJECT_ENCODING;
        return $deserializer->readTypeMarker();
    }

    public function getObjectEncoding()
    {
        return $this->_objectEncoding;
    }
}