Subversion-Projekte lars-tiefland.php_share

<?php
/*
 * Copyright 2010-2012 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file is distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */


/*%******************************************************************************************%*/
// CLASS

/**
 * Handles the conversion of data from JSON to other formats.
 *
 * @version 2012.01.27
 * @license See the included NOTICE.md file for more information.
 * @copyright See the included NOTICE.md file for more information.
 * @link http://aws.amazon.com/php/ PHP Developer Center
 */
class CFJSON
{
        /**
         * Converts a JSON string to a CFSimpleXML object.
         *
         * @param string|array $json (Required) Pass either a valid JSON-formatted string, or an associative array.
         * @param string $parser (Optional) The name of the class to use to parse the XML. This class should extend <code>SimpleXMLElement</code>. Has a default value of <code>CFSimpleXML</code>.
         * @return CFSimpleXML An XML representation of the data.
         */
        public static function to_xml($json, $parser = 'CFSimpleXML')
        {
                // If we haven't parsed the JSON, do it
                if (!is_array($json))
                {
                        // Handle the case of JSON-encoded NULL value
                        if ($json === 'null')
                        {
                                $json = null;
                        }
                        else
                        {
                                $json = json_decode($json, true);

                                if (function_exists('json_last_error'))
                                {
                                        // Did we encounter an error?
                                        switch (json_last_error())
                                        {
                                                case JSON_ERROR_DEPTH:
                                                        throw new JSON_Exception('Maximum stack depth exceeded.');

                                                case JSON_ERROR_CTRL_CHAR:
                                                        throw new JSON_Exception('Unexpected control character found.');

                                                case JSON_ERROR_SYNTAX:
                                                        throw new JSON_Exception('Syntax error; Malformed JSON.');

                                                case JSON_ERROR_STATE_MISMATCH:
                                                        throw new JSON_Exception('Invalid or malformed JSON.');
                                        }
                                }
                                // json_last_error() not available?
                                elseif ($json === null)
                                {
                                        throw new JSON_Exception('Unknown JSON error. Be sure to validate your JSON and read the notes on http://php.net/json_decode.');
                                }
                        }
                }

                // Hand off for the recursive work
                $string = Array2DOM::arrayToXMLString($json, 'rootElement', true);

                return simplexml_load_string($string, $parser, LIBXML_NOCDATA);
        }
}


/**
 * Default JSON Exception.
 */
class JSON_Exception extends Exception {}