<?php

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/**

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* IXR_Value

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*

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* @package IXR

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* @since 1.5.0

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*/

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class IXR_Value {

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var $data;

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var $type;

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/**

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* PHP5 constructor.

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*/

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function __construct( $data, $type = false )

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{

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$this->data = $data;

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if (!$type) {

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$type = $this->calculateType();

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}

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$this->type = $type;

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if ($type == 'struct') {

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// Turn all the values in the array in to new IXR_Value objects

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foreach ($this->data as $key => $value) {

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$this->data[$key] = new IXR_Value($value);

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}

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}

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if ($type == 'array') {

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for ($i = 0, $j = count($this->data); $i < $j; $i++) {

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$this->data[$i] = new IXR_Value($this->data[$i]);

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}

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}

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}

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/**

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* PHP4 constructor.

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*/

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public function IXR_Value( $data, $type = false ) {

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self::__construct( $data, $type );

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}

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function calculateType()

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{

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if ($this->data === true || $this->data === false) {

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return 'boolean';

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}

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if (is_integer($this->data)) {

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return 'int';

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}

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if (is_double($this->data)) {

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return 'double';

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}

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// Deal with IXR object types base64 and date

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if (is_object($this->data) && is_a($this->data, 'IXR_Date')) {

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return 'date';

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}

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if (is_object($this->data) && is_a($this->data, 'IXR_Base64')) {

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return 'base64';

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}

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// If it is a normal PHP object convert it in to a struct

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if (is_object($this->data)) {

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$this->data = get_object_vars($this->data);

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return 'struct';

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}

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if (!is_array($this->data)) {

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return 'string';

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}

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// We have an array - is it an array or a struct?

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if ($this->isStruct($this->data)) {

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return 'struct';

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} else {

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return 'array';

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}

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}

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function getXml()

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{

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// Return XML for this value

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switch ($this->type) {

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case 'boolean':

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return '<boolean>'.(($this->data) ? '1' : '0').'</boolean>';

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break;

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case 'int':

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return '<int>'.$this->data.'</int>';

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break;

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case 'double':

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return '<double>'.$this->data.'</double>';

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break;

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case 'string':

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return '<string>'.htmlspecialchars($this->data).'</string>';

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break;

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case 'array':

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$return = '<array><data>'."\n";

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foreach ($this->data as $item) {

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$return .= ' <value>'.$item->getXml()."</value>\n";

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}

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$return .= '</data></array>';

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return $return;

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break;

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case 'struct':

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$return = '<struct>'."\n";

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foreach ($this->data as $name => $value) {

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$name = htmlspecialchars($name);

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$return .= " <member><name>$name</name><value>";

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$return .= $value->getXml()."</value></member>\n";

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}

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$return .= '</struct>';

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return $return;

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break;

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case 'date':

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case 'base64':

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return $this->data->getXml();

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break;

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}

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return false;

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}

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/**

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* Checks whether or not the supplied array is a struct or not

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*

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* @param array $array

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* @return bool

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*/

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function isStruct($array)

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{

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$expected = 0;

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foreach ($array as $key => $value) {

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if ((string)$key !== (string)$expected) {

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return true;

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}

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$expected++;

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}

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return false;

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}

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}

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