<?php

/**
* xmlize() is by Hans Anderson, www.hansanderson.com/contact/
*
* Ye Ole "Feel Free To Use it However" License [PHP, BSD, GPL].
* some code in xml_depth is based on code written by other PHPers
* as well as one Perl script.  Poor programming practice and organization
* on my part is to blame for the credit these people aren't receiving.
* None of the code was copyrighted, though.
*
* This is a stable release, 1.0.  I don't foresee any changes, but you
* might check http://www.hansanderson.com/php/xml/ to see
*
* usage: $xml = xmlize($xml_data);
*
* See the function traverse_xmlize() for information about the
* structure of the array, it's much easier to explain by showing you.
* Be aware that the array is very complex.  I use xmlize all the time,
* but still need to use traverse_xmlize or print_r() quite often to
* show me the structure!
*
* @package Newedge_API
* @access public
*/
class XmlFunctions
{
    function xmlize($data, $WHITE=1) {

        $data = trim($data);
        $vals = $index = $array = array();
        $parser = xml_parser_create();
        xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
        xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, $WHITE);
        if ( !xml_parse_into_struct($parser, $data, $vals, $index) )
        {
            return new NE_Error(sprintf("XML error: %s at line %d",
                        xml_error_string(xml_get_error_code($parser)),
                        xml_get_current_line_number($parser)));

        }
        xml_parser_free($parser);

        $i = 0;

        $tagname = $vals[$i]['tag'];
        if ( isset ($vals[$i]['attributes'] ) )
        {
            $array[$tagname]['@'] = $vals[$i]['attributes'];
        } else {
            $array[$tagname]['@'] = array();
        }

        $array[$tagname]["#"] = XmlFunctions::xml_depth($vals, $i);

        return $array;
    }

    /*
     *
     * You don't need to do anything with this function, it's called by
     * xmlize.  It's a recursive function, calling itself as it goes deeper
     * into the xml levels.  If you make any improvements, please let me know.
     *
     *
     */

    function xml_depth($vals, &$i) {
        $children = array();

        if ( isset($vals[$i]['value']) )
        {
            array_push($children, $vals[$i]['value']);
        }

        while (++$i < count($vals)) {

            switch ($vals[$i]['type']) {

               case 'open':

                    if ( isset ( $vals[$i]['tag'] ) )
                    {
                        $tagname = $vals[$i]['tag'];
                    } else {
                        $tagname = '';
                    }

                    if ( isset ( $children[$tagname] ) )
                    {
                        $size = sizeof($children[$tagname]);
                    } else {
                        $size = 0;
                    }

                    if ( isset ( $vals[$i]['attributes'] ) ) {
                        $children[$tagname][$size]['@'] = $vals[$i]["attributes"];
                    }

                    $children[$tagname][$size]['#'] = XmlFunctions::xml_depth($vals, $i);

                break;


                case 'cdata':
                    array_push($children, $vals[$i]['value']);
                break;

                case 'complete':
                    $tagname = $vals[$i]['tag'];

                    if( isset ($children[$tagname]) )
                    {
                        $size = sizeof($children[$tagname]);
                    } else {
                        $size = 0;
                    }

                    if( isset ( $vals[$i]['value'] ) )
                    {
                        $children[$tagname][$size]["#"] = $vals[$i]['value'];
                    } else {
                        $children[$tagname][$size]["#"] = '';
                    }

                    if ( isset ($vals[$i]['attributes']) ) {
                        $children[$tagname][$size]['@']
                                                 = $vals[$i]['attributes'];
                    }

                break;

                case 'close':
                    return $children;
                break;
            }

        }

        return $children;

    }


    /* function by acebone@f2s.com, a HUGE help!
     *
     * this helps you understand the structure of the array xmlize() outputs
     *
     * usage:
     * traverse_xmlize($xml, 'xml_');
     * print '<pre>' . implode("", $traverse_array . '</pre>';
     *
     *
     */

    function traverse_xmlize($array, $arrName = "array", $level = 0) {

        foreach($array as $key=>$val)
        {
            if ( is_array($val) )
            {
                traverse_xmlize($val, $arrName . "[" . $key . "]", $level + 1);
            } else {
                $GLOBALS['traverse_array'][] = '$' . $arrName . '[' . $key . '] = "' . $val . "\"\n";
            }
        }

        return 1;

    }
}

?>
