Initial commit
This commit is contained in:
Ben Ramey
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<?php
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/*
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Copyright (C) 2006 Google Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/*
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* Class used to generate XML data
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* Based on sample code available at http://simon.incutio.com/code/php/XmlWriter.class.php.txt
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*/
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class XmlBuilder {
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var $xml;
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var $indent;
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var $stack = array();
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function XmlBuilder($indent = ' ') {
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$this->indent = $indent;
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$this->xml = '<?xml version="1.0" encoding="utf-8"?>'."\n";
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}
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function _indent() {
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for ($i = 0, $j = count($this->stack); $i < $j; $i++) {
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$this->xml .= $this->indent;
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}
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}
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//Used when an element has sub-elements
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// This function adds an open tag to the output
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function Push($element, $attributes = array()) {
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$this->_indent();
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$this->xml .= '<'.$element;
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foreach ($attributes as $key => $value) {
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$this->xml .= ' '.$key.'="'.htmlentities($value).'"';
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}
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$this->xml .= ">\n";
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$this->stack[] = $element;
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}
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//Used when an element has no subelements.
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//Data within the open and close tags are provided with the
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//contents variable
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function Element($element, $content, $attributes = array()) {
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$this->_indent();
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$this->xml .= '<'.$element;
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foreach ($attributes as $key => $value) {
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$this->xml .= ' '.$key.'="'.htmlentities($value).'"';
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}
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$this->xml .= '>'.htmlentities($content).'</'.$element.'>'."\n";
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}
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function EmptyElement($element, $attributes = array()) {
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$this->_indent();
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$this->xml .= '<'.$element;
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foreach ($attributes as $key => $value) {
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$this->xml .= ' '.$key.'="'.htmlentities($value).'"';
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}
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$this->xml .= " />\n";
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}
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//Used to close an open tag
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function Pop($pop_element) {
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$element = array_pop($this->stack);
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$this->_indent();
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if($element !== $pop_element)
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die('XML Error: Tag Mismatch when trying to close "'. $pop_element. '"');
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else
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$this->xml .= "</$element>\n";
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}
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function GetXML() {
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if(count($this->stack) != 0)
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die ('XML Error: No matching closing tag found for " '. array_pop($this->stack). '"');
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else
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return $this->xml;
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}
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}
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?>
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@@ -0,0 +1,163 @@
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<?php
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/*
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Copyright (C) 2006 Google Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/* This uses SAX parser to convert XML data into PHP associative arrays
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* When invoking the constructor with the input data, strip out the first XML line
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*
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* Member field Description:
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* $params: This stores the XML data. The attributes and contents of XML tags
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* can be accessed as follows
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*
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* <addresses>
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* <anonymous-address id="123"> <test>data 1 </test>
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* </anonymous-address>
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* <anonymous-address id="456"> <test>data 2 </test>
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* </anonymous-address>
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* </addresses>
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*
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* print_r($this->params) will return
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Array
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(
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[addresses] => Array
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(
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[anonymous-address] => Array
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(
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[0] => Array
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(
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[id] => 123
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[test] => Array
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(
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[VALUE] => data 1
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)
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)
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[1] => Array
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(
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[id] => 456
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[test] => Array
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(
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[VALUE] => data 2
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)
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)
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)
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)
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)
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* XmlParser returns an empty params array if it encounters
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* any error during parsing
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*/
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class XmlParser {
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var $params= array(); //Stores the object representation of XML data
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var $root;
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var $global_index = -1;
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/* Constructor for the class
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* Takes in XML data as input( do not include the <xml> tag
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*/
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function XmlParser($input) {
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$xmlp = xml_parser_create();
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xml_parse_into_struct($xmlp, $input, $vals, $index);
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xml_parser_free($xmlp);
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$this->root = strtolower($vals[0]['tag']);
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$this->params = $this->UpdateRecursive($vals);
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}
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/* Returns true if a given variable represents an associative array */
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function is_associative_array( $var ) {
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return is_array( $var ) && !is_numeric( implode( '', array_keys( $var ) ) );
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}
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/* Converts the output of SAX parser into a PHP associative array similar to the
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* DOM parser output
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*/
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function UpdateRecursive($vals) {
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$this->global_index++;
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//Reached end of array
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if($this->global_index >= count($vals))
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return;
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$tag = strtolower($vals[$this->global_index]['tag']);
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$value = trim($vals[$this->global_index]['value']);
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$type = $vals[$this->global_index]['type'];
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//Add attributes
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if(isset($vals[$this->global_index]['attributes'])) {
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foreach($vals[$this->global_index]['attributes'] as $key=>$val) {
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$key = strtolower($key);
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$params[$tag][$key] = $val;
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}
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}
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if($type == 'open') {
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$new_arr = array();
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//Read all elements at the next levels and add to an array
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while($vals[$this->global_index]['type'] != 'close' &&
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$this->global_index < count($vals)) {
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$arr = $this->UpdateRecursive($vals);
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if(count($arr) > 0) {
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$new_arr[] = $arr;
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}
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}
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$this->global_index++;
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foreach($new_arr as $arr) {
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foreach($arr as $key=>$val) {
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if(isset($params[$tag][$key])) {
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//If this key already exists
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if($this->is_associative_array($params[$tag][$key])) {
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//If this is an associative array and not an indexed array
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// remove exisiting value and convert to an indexed array
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$val_key = $params[$tag][$key];
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array_splice($params[$tag][$key], 0);
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$params[$tag][$key][0] = $val_key;
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$params[$tag][$key][] = $val;
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} else {
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$params[$tag][$key][] = $val;
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}
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} else {
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$params[$tag][$key] = $val;
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}
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}
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}
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}
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else if ($type == 'complete') {
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if($value != '')
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$params[$tag]['VALUE'] = $value;
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}
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else
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$params = array();
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return $params;
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}
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/* Returns the root of the XML data */
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function GetRoot() {
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return $this->root;
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}
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/* Returns the array representing the XML data */
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function GetData() {
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return $this->params;
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}
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}
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?>
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