/home/kueuepay/public_html/vendor/filp/whoops/src/Whoops/Handler/XmlResponseHandler.php
<?php
/**
 * Whoops - php errors for cool kids
 * @author Filipe Dobreira <http://github.com/filp>
 */

namespace Whoops\Handler;

use SimpleXMLElement;
use Whoops\Exception\Formatter;

/**
 * Catches an exception and converts it to an XML
 * response. Additionally can also return exception
 * frames for consumption by an API.
 */
class XmlResponseHandler extends Handler
{
    /**
     * @var bool
     */
    private $returnFrames = false;

    /**
     * @param  bool|null  $returnFrames
     * @return bool|static
     */
    public function addTraceToOutput($returnFrames = null)
    {
        if (func_num_args() == 0) {
            return $this->returnFrames;
        }

        $this->returnFrames = (bool) $returnFrames;
        return $this;
    }

    /**
     * @return int
     */
    public function handle()
    {
        $response = [
            'error' => Formatter::formatExceptionAsDataArray(
                $this->getInspector(),
                $this->addTraceToOutput(),
                $this->getRun()->getFrameFilters()
            ),
        ];

        echo self::toXml($response);

        return Handler::QUIT;
    }

    /**
     * @return string
     */
    public function contentType()
    {
        return 'application/xml';
    }

    /**
     * @param  SimpleXMLElement  $node Node to append data to, will be modified in place
     * @param  array|\Traversable $data
     * @return SimpleXMLElement  The modified node, for chaining
     */
    private static function addDataToNode(\SimpleXMLElement $node, $data)
    {
        assert(is_array($data) || $data instanceof Traversable);

        foreach ($data as $key => $value) {
            if (is_numeric($key)) {
                // Convert the key to a valid string
                $key = "unknownNode_". (string) $key;
            }

            // Delete any char not allowed in XML element names
            $key = preg_replace('/[^a-z0-9\-\_\.\:]/i', '', $key);

            if (is_array($value)) {
                $child = $node->addChild($key);
                self::addDataToNode($child, $value);
            } else {
                $value = str_replace('&', '&amp;', print_r($value, true));
                $node->addChild($key, $value);
            }
        }

        return $node;
    }

    /**
     * The main function for converting to an XML document.
     *
     * @param  array|\Traversable $data
     * @return string            XML
     */
    private static function toXml($data)
    {
        assert(is_array($data) || $data instanceof Traversable);

        $node = simplexml_load_string("<?xml version='1.0' encoding='utf-8'?><root />");

        return self::addDataToNode($node, $data)->asXML();
    }
}
Best Practice

Best Practices

To ensure a smooth integration process and optimal performance, follow these best practices:

  1. Use secure HTTPS connections for all API requests.
  2. Implement robust error handling to handle potential issues gracefully.
  3. Regularly update your integration to stay current with any API changes or enhancements.