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✎ Editing: JsonResponseHandler.php ← Back

<?php
/**
 * Whoops - php errors for cool kids
 * @author Filipe Dobreira <http://github.com/filp>
 */

namespace Whoops\Handler;

use Whoops\Exception\Formatter;

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

/**
     * @var bool
     */
    private $onlyForAjaxRequests = false;

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

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

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

$this->onlyForAjaxRequests = (bool) $onlyForAjaxRequests;
    }

/**
     * Check, if possible, that this execution was triggered by an AJAX request.
     *
     * @return bool
     */
    private function isAjaxRequest()
    {
        return (
            !empty($_SERVER['HTTP_X_REQUESTED_WITH'])
            && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
    }

/**
     * @return int
     */
    public function handle()
    {
        if ($this->onlyForAjaxRequests() && !$this->isAjaxRequest()) {
            return Handler::DONE;
        }

$response = array(
            'error' => Formatter::formatExceptionAsDataArray(
                $this->getInspector(),
                $this->addTraceToOutput()
            ),
        );

if (\Whoops\Util\Misc::canSendHeaders()) {
            header('Content-Type: application/json');
        }

echo json_encode($response);
        return Handler::QUIT;
    }
}

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