class ArrayUtility{/*** Convert array to xml tree** @param array $array* @param array $options* @return string* @example xmlize()*/public function xmlize($array, $options){$encoding = isset($options['encoding']) ? $options[$encoding] :'utf-8';$root = isset($options['root']) ? $options['root'] : 'response';$xml = "< ?xml version="1.0" encoding="{$encoding}"?> < $root> ”;$xml .= self::_xmlize($array);$xml .= “”;return $xml;}private function _xmlize($array){$string = ”;foreach($array as $key => $value){$stag = is_numeric($key) ? “item id=”$key”" : $key;$etag = is_numeric($key) ? “item” : $key;if (is_array($value)){$string .= “< " . $stag . ">” . self::_xmlize($value) . “ ”;}else{$string .= “< " . $stag . ">” . $value . “ ”;}}return $string;}}使用方法:$api_data = array('status' => '200','message' => '成功','data' => array('account'=> array(0 => array('id' => 15,'plat' => 1,'pay_account' => 'glemir@yahoo.cn'),1 => array('id' => 16,'plat' => 2,'pay_account' => 'test@gmail.com))));header('Content-Type: text/xml');$arrayob = new ArrayUtility();$xml = $arrayob->xmlize($api_data); //这里可以加上编码的参数,默认utf-8echo $xml;