C:/xampp/htdocs/moodle/lib/zend/Zend/Rest/Client/Result.php

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<?php
class Zend_Rest_Client_Result implements IteratorAggregate {
    protected $_sxml;

    protected $_errstr;

    public function __construct($data)
    {
        set_error_handler(array($this, 'handleXmlErrors'));
        $this->_sxml = simplexml_load_string($data);
        restore_error_handler();
        if($this->_sxml === false) {
            if ($this->_errstr === null) {
                $message = "An error occured while parsing the REST response with simplexml.";
            } else {
                $message = "REST Response Error: " . $this->_errstr;
                $this->_errstr = null;
            }
            require_once "Zend/Rest/Client/Result/Exception.php";
            throw new Zend_Rest_Client_Result_Exception($message);
        }
    }

    public function handleXmlErrors($errno, $errstr, $errfile = null, $errline = null, array $errcontext = null)
    {
        $this->_errstr = $errstr;
        return true;
    }

    public function toValue(SimpleXMLElement $value)
    {
        $node = dom_import_simplexml($value);
        return $node->nodeValue;
    }

    public function __get($name)
    {
        if (isset($this->_sxml->{$name})) {
            return $this->_sxml->{$name};
        }

        $result = $this->_sxml->xpath("//$name");
        $count  = count($result);

        if ($count == 0) {
            return null;
        } elseif ($count == 1) {
            return $result[0];
        } else {
            return $result;
        }
    }

    public function __call($method, $args)
    {
        if (null !== ($value = $this->__get($method))) {
            if (!is_array($value)) {
                return $this->toValue($value);
            } else {
                $return = array();
                foreach ($value as $element) {
                    $return[] = $this->toValue($element);
                }
                return $return;
            }
        }

        return null;
    }


    public function __isset($name)
    {
        if (isset($this->_sxml->{$name})) {
            return true;
        }

        $result = $this->_sxml->xpath("//$name");

        if (sizeof($result) > 0) {
            return true;
        }

        return false;
    }

    public function getIterator()
    {
        return $this->_sxml;
    }

    public function getStatus()
    {
        $status = $this->_sxml->xpath('//status/text()');

        $status = strtolower($status[0]);

        if (ctype_alpha($status) && $status == 'success') {
            return true;
        } elseif (ctype_alpha($status) && $status != 'success') {
            return false;
        } else {
            return (bool) $status;
        }
    }

    public function isError()
    {
        $status = $this->getStatus();
        if ($status) {
            return false;
        } else {
            return true;
        }
    }

    public function isSuccess()
    {
        $status = $this->getStatus();
        if ($status) {
            return true;
        } else {
            return false;
        }
    }

    public function __toString()
    {
        if (!$this->getStatus()) {
            $message = $this->_sxml->xpath('//message');
            return (string) $message[0];
        } else {
            $result = $this->_sxml->xpath('//response');
            if (sizeof($result) > 1) {
                return (string) "An error occured.";
            } else {
                return (string) $result[0];
            }
        }
    }
}