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<?php |
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namespace POData\UriProcessor; |
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class XML2Array |
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{ |
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/** |
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* @var string |
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*/ |
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private static $encoding = 'UTF-8'; |
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/** |
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* @var \DOMDocument |
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*/ |
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private static $xml = null; |
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/** |
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* Convert an XML to Array. |
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* |
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* @param string $input_xml |
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* |
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* @return array |
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* |
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* @throws \Exception |
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*/ |
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public static function createArray($input_xml) |
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{ |
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if(!isset($input_xml) || 0 === strlen($input_xml){ |
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return []; |
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} |
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$xml = self::getXMLRoot(); |
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if (is_string($input_xml)) { |
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try { |
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$xml->loadXML($input_xml); |
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if (!is_object($xml) || empty($xml->documentElement)) { |
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throw new \Exception(); |
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} |
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} catch (\Exception $ex) { |
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throw new \Exception('[XML2Array] Error parsing the XML string.' . PHP_EOL . $ex->getMessage()); |
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} |
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} elseif (is_object($input_xml)) { |
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if (get_class($input_xml) != 'DOMDocument') { |
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throw new \Exception('[XML2Array] The input XML object should be of type: DOMDocument.'); |
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} |
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$xml = self::$xml = $input_xml; |
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} else { |
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throw new \Exception('[XML2Array] Invalid input'); |
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} |
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$array[$xml->documentElement->tagName] = self::convert($xml->documentElement); |
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self::$xml = null; // clear the xml node in the class for 2nd time use. |
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return $array; |
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} |
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/** |
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* Initialize the root XML node [optional]. |
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* |
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* @param string $version |
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* @param string $encoding |
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* @param bool $standalone |
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* @param bool $format_output |
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*/ |
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public static function init($version = '1.0', $encoding = 'utf-8', $standalone = false, $format_output = true) |
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{ |
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self::$xml = new \DomDocument($version, $encoding); |
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self::$xml->xmlStandalone = $standalone; |
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self::$xml->formatOutput = $format_output; |
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self::$encoding = $encoding; |
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} |
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/** |
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* Convert an Array to XML. |
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* |
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* @param \DOMNode $node - XML as a string or as an object of DOMDocument |
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* |
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* @return array |
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*/ |
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private static function convert(\DOMNode $node) |
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{ |
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$output = []; |
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switch ($node->nodeType) { |
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case XML_CDATA_SECTION_NODE: |
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$output['@cdata'] = trim($node->textContent); |
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break; |
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case XML_TEXT_NODE: |
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$output = trim($node->textContent); |
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break; |
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case XML_ELEMENT_NODE: |
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// for each child node, call the covert function recursively |
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for ($i = 0, $m = $node->childNodes->length; $i < $m; ++$i) { |
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$child = $node->childNodes->item($i); |
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$v = self::convert($child); |
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if (isset($child->tagName)) { |
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$t = $child->tagName; |
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// assume more nodes of same kind are coming |
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if (!array_key_exists($t, $output)) { |
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$output[$t] = []; |
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} |
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$output[$t][] = $v; |
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} else { |
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//check if it is not an empty node |
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if (!empty($v)) { |
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$output = $v; |
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} |
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} |
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} |
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if (is_array($output)) { |
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// if only one node of its kind, assign it directly instead if array($value); |
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foreach ($output as $t => $v) { |
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if (is_array($v) && count($v) == 1) { |
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$output[$t] = $v[0]; |
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} |
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} |
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if (empty($output)) { |
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//for empty nodes |
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$output = ''; |
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} |
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} |
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// loop through the attributes and collect them |
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if ($node->attributes->length) { |
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$a = []; |
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foreach ($node->attributes as $attrName => $attrNode) { |
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$a[$attrName] = $attrNode->value; |
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} |
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// if its an leaf node, store the value in @value instead of directly storing it. |
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if (!is_array($output)) { |
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$output = ['@value' => $output]; |
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} |
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$output['@attributes'] = $a; |
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} |
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break; |
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} |
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return $output; |
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} |
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/** |
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* Get the root XML node, if there isn't one, create it. |
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131
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* |
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* @return \DOMDocument |
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*/ |
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private static function getXMLRoot() |
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{ |
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if (empty(self::$xml)) { |
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self::init(); |
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} |
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return self::$xml; |
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} |
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} |
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Algo-Web /
POData
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