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<?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;
Output for 5.3.0 - 7.1.0
1