<?php
class XMLParser {
private static $xml = null;
private static $encoding = 'UTF-8';
/**
* Initialize the root XML node [optional]
* @param $version
* @param $encoding
* @param $format_output
*/
public static function init($version = '1.0', $encoding = 'UTF-8', $format_output = true) {
self::$xml = new DomDocument($version, $encoding);
self::$xml->formatOutput = $format_output;
self::$encoding = $encoding;
}
/**
* Convert an Array to XML
* @param string $node_name - name of the root node to be converted
* @param array $arr - aray to be converterd
* @return DomDocument
*/
public static function &createXML($node_name, $arr=array()) {
$xml = self::getXMLRoot();
$xml->appendChild(self::convert($node_name, $arr));
self::$xml = null; // clear the xml node in the class for 2nd time use.
return $xml;
}
/**
* Convert an Array to XML
* @param string $node_name - name of the root node to be converted
* @param array $arr - aray to be converterd
* @return DOMNode
*/
private static function &convert($node_name, $arr=array()) {
//print_arr($node_name);
$xml = self::getXMLRoot();
$node = $xml->createElement($node_name);
if(is_array($arr)){
// get the attributes first.;
if(isset($arr['@attributes'])) {
foreach($arr['@attributes'] as $key => $value) {
if(!self::isValidTagName($key)) {
throw new Exception('[XMLParser] Illegal character in attribute name. attribute: '.$key.' in node: '.$node_name);
}
$node->setAttribute($key, htmlspecialchars(self::bool2str($value), ENT_QUOTES, self::$encoding));
}
unset($arr['@attributes']); //remove the key from the array once done.
}
// check if it has a value stored in @value, if yes store the value and return
// else check if its directly stored as string
if(isset($arr['@value'])) {
$node->appendChild($xml->createTextNode(htmlspecialchars(self::bool2str($arr['@value']), ENT_QUOTES, self::$encoding)));
unset($arr['@value']); //remove the key from the array once done.
//return from recursion, as a note with value cannot have child nodes.
return $node;
} else if(isset($arr['@cdata'])) {
$node->appendChild($xml->createCDATASection(self::bool2str($arr['@cdata'])));
unset($arr['@cdata']); //remove the key from the array once done.
//return from recursion, as a note with cdata cannot have child nodes.
return $node;
}
}
//create subnodes using recursion
if(is_array($arr)){
// recurse to get the node for that key
foreach($arr as $key=>$value){
if(!self::isValidTagName($key)) {
throw new Exception('[XMLParser] Illegal character in tag name. tag: '.$key.' in node: '.$node_name);
}
if(is_array($value) && is_numeric(key($value))) {
// MORE THAN ONE NODE OF ITS KIND;
// if the new array is numeric index, means it is array of nodes of the same kind
// it should follow the parent key name
foreach($value as $k=>$v){
$node->appendChild(self::convert($key, $v));
}
} else {
// ONLY ONE NODE OF ITS KIND
$node->appendChild(self::convert($key, $value));
}
unset($arr[$key]); //remove the key from the array once done.
}
}
// after we are done with all the keys in the array (if it is one)
// we check if it has any text value, if yes, append it.
if(!is_array($arr)) {
$node->appendChild($xml->createTextNode(htmlspecialchars(self::bool2str($arr), ENT_QUOTES, self::$encoding)));
}
return $node;
}
/*
* Get the root XML node, if there isn't one, create it.
*/
private static function getXMLRoot(){
if(empty(self::$xml)) {
self::init();
}
return self::$xml;
}
/*
* Get string representation of boolean value
*/
private static function bool2str($v){
//convert boolean to text value.
$v = $v === true ? 'true' : $v;
$v = $v === false ? 'false' : $v;
return $v;
}
/*
* Check if the tag name or attribute name contains illegal characters
* Ref: http://www.w3.org/TR/xml/#sec-common-syn
*/
private static function isValidTagName($tag){
$pattern = '/^[a-z_]+[a-z0-9\:\-\.\_]*[^:]*$/i';
return preg_match($pattern, $tag, $matches) && $matches[0] == $tag;
}
}
/**
* XML2Array: A class to convert XML to array in PHP
* It returns the array which can be converted back to XML using the Array2XML script
* It takes an XML string or a DOMDocument object as an input.
*
* See Array2XML: http://www.lalit.org/lab/convert-php-array-to-xml-with-attributes
*
* Author : Lalit Patel
* Website: http://www.lalit.org/lab/convert-xml-to-array-in-php-xml2array
* License: Apache License 2.0
* http://www.apache.org/licenses/LICENSE-2.0
* Version: 0.1 (07 Dec 2011)
* Version: 0.2 (04 Mar 2012)
* Fixed typo 'DomDocument' to 'DOMDocument'
*
* Usage:
* $array = XML2Array::createArray($xml);
*/
class XML2Array {
private static $xml = null;
private static $encoding = 'UTF-8';
/**
* Initialize the root XML node [optional]
* @param $version
* @param $encoding
* @param $format_output
*/
public static function init($version = '1.0', $encoding = 'UTF-8', $format_output = true) {
self::$xml = new DOMDocument($version, $encoding);
self::$xml->formatOutput = $format_output;
self::$encoding = $encoding;
}
/**
* Convert an XML to Array
* @param string $node_name - name of the root node to be converted
* @param array $arr - aray to be converterd
* @return DOMDocument
*/
public static function &createArray($input_xml) {
$xml = self::getXMLRoot();
if(is_string($input_xml)) {
$parsed = $xml->loadXML($input_xml);
if(!$parsed) {
throw new Exception('[XML2Array] Error parsing the XML string.');
}
} else {
if(get_class($input_xml) != 'DOMDocument') {
throw new Exception('[XML2Array] The input XML object should be of type: DOMDocument.');
}
$xml = self::$xml = $input_xml;
}
$array[$xml->documentElement->tagName] = self::convert($xml->documentElement);
self::$xml = null; // clear the xml node in the class for 2nd time use.
return $array;
}
/**
* Convert an Array to XML
* @param mixed $node - XML as a string or as an object of DOMDocument
* @return mixed
*/
private static function &convert($node) {
$output = array();
switch ($node->nodeType) {
case XML_CDATA_SECTION_NODE:
$output['@cdata'] = trim($node->textContent);
break;
case XML_TEXT_NODE:
$output = trim($node->textContent);
break;
case XML_ELEMENT_NODE:
// for each child node, call the covert function recursively
for ($i=0, $m=$node->childNodes->length; $i<$m; $i++) {
$child = $node->childNodes->item($i);
$v = self::convert($child);
if(isset($child->tagName)) {
$t = $child->tagName;
// assume more nodes of same kind are coming
if(!isset($output[$t])) {
$output[$t] = array();
}
$output[$t][] = $v;
} else {
//check if it is not an empty text node
if($v !== '') {
$output = $v;
}
}
}
if(is_array($output)) {
// if only one node of its kind, assign it directly instead if array($value);
foreach ($output as $t => $v) {
if(is_array($v) && count($v)==1) {
$output[$t] = $v[0];
}
}
if(empty($output)) {
//for empty nodes
$output = '';
}
}
// loop through the attributes and collect them
if($node->attributes->length) {
$a = array();
foreach($node->attributes as $attrName => $attrNode) {
$a[$attrName] = (string) $attrNode->value;
}
// if its an leaf node, store the value in @value instead of directly storing it.
if(!is_array($output)) {
$output = array('@value' => $output);
}
$output['@attributes'] = $a;
}
break;
}
return $output;
}
/*
* Get the root XML node, if there isn't one, create it.
*/
private static function getXMLRoot(){
if(empty(self::$xml)) {
self::init();
}
return self::$xml;
}
}
echo 1;