Recca0120\LaravelTracy\Panels\HtmlValidatorPanel::getAttributes PHP Method

    public function getAttributes()
    {
        libxml_use_internal_errors(true);
        $dom = new DOMDocument('1.0', 'UTF-8');
        $dom->resolveExternals = false;
        $dom->validateOnParse = true;
        $dom->preserveWhiteSpace = false;
        $dom->strictErrorChecking = true;
        $dom->recover = true;
        // set_error_handler(function ($severity, $message) {
        //     restore_error_handler();
        // });
        @$dom->loadHTML($this->normalize($this->html));
        // restore_error_handler();
        $errors = array_filter(libxml_get_errors(), function (LibXMLError $error) {
            return in_array((int) $error->code, static::$ignoreErrors, true) === false;
        });
        libxml_clear_errors();
        return ['severenity' => static::$severenity, 'counter' => count($errors), 'errors' => $errors, 'html' => $this->html];
    }