mikehaertl\wkhtmlto\Pdf::setOptions PHP Method

    public function setOptions($options = array())
    {
        $options = $this->processOptions($options);
        foreach ($options as $key => $val) {
            if (is_int($key)) {
                $this->_options[] = $val;
            } elseif ($key[0] !== '_' && property_exists($this, $key)) {
                $this->{$key} = $val;
            } else {
                $this->_options[$key] = $val;
            }
        }
        return $this;
    }

 /**
  * Settings of document and WkHtmlToPdf.
  *
  * @param array $options
  * @link https://github.com/mikehaertl/phpwkhtmltopdf
  * @link http://wkhtmltopdf.org/usage/wkhtmltopdf.txt
  */
 public function setOptions(array $options)
 {
     $wkhtmltopdf_global = array('page-size' => 'a4', 'margin-top' => 20, 'margin-bottom' => 20, 'margin-left' => 12, 'margin-right' => 12, 'header-spacing' => 6, 'footer-spacing' => 6);
     $wkhtmltopdf_page = array('header-line', 'footer-line', 'header-left' => '[title]', 'header-right' => '[section]', 'footer-center' => '[page]/[topage]');
     $wkhtmltopdf_cover = array('no-header-line', 'no-footer-line', 'header-left' => '', 'header-right' => '', 'footer-center' => '');
     $wkhtmltopdf_toc = array();
     $resolver = new OptionsResolver();
     $resolver->setRequired(array('dummy_pdf_url', 'display_url', 'download_url', 'remote_url', 'pluginDetect_PDFReader_url', 'waiting_view_path', 'queue_db_path'));
     $resolver->setDefaults(array('wkhtmltopdf_global' => array(), 'wkhtmltopdf_page' => array(), 'wkhtmltopdf_cover' => array(), 'wkhtmltopdf_toc' => array()));
     $resolver->setAllowedTypes('wkhtmltopdf_global', 'array');
     $resolver->setAllowedTypes('wkhtmltopdf_page', 'array');
     $resolver->setAllowedTypes('wkhtmltopdf_cover', 'array');
     $resolver->setAllowedTypes('wkhtmltopdf_toc', 'array');
     $resolver->setAllowedTypes('dummy_pdf_url', 'string');
     $resolver->setAllowedTypes('display_url', 'string');
     $resolver->setAllowedTypes('download_url', 'string');
     $resolver->setAllowedTypes('remote_url', 'string');
     // http://www.pinlady.net/PluginDetect/PDFReader/
     $resolver->setAllowedTypes('pluginDetect_PDFReader_url', 'string');
     $resolver->setAllowedTypes('waiting_view_path', 'string');
     $resolver->setNormalizer('wkhtmltopdf_global', function (Options $options, $value) use($wkhtmltopdf_global) {
         return array_merge($wkhtmltopdf_global, $value);
     });
     $resolver->setNormalizer('wkhtmltopdf_page', function (Options $options, $value) use($wkhtmltopdf_page) {
         return array_merge($wkhtmltopdf_page, $value);
     });
     $resolver->setNormalizer('wkhtmltopdf_cover', function (Options $options, $value) use($wkhtmltopdf_cover) {
         return array_merge($wkhtmltopdf_cover, $value);
     });
     $resolver->setNormalizer('wkhtmltopdf_toc', function (Options $options, $value) use($wkhtmltopdf_toc) {
         return array_merge($wkhtmltopdf_toc, $value);
     });
     $resolver->setNormalizer('waiting_view_path', function (Options $options, $value) {
         if (!file_exists($value)) {
             throw new \UnexpectedValueException('Error during parse waiting_view_path: File not found.');
         }
         $info = pathinfo($value);
         if ($info['extension'] != 'html') {
             throw new \UnexpectedValueException('Error during parse waiting_view_path: Unexpected file extension - ' . $info['extension']);
         }
         return $value;
     });
     $this->options = $resolver->resolve($options);
     $this->wkhtmltopdf->setOptions($this->options['wkhtmltopdf_global']);
     // kolejka żądań utworzenia pliku
     $this->queue = QueuePdfDb::openFile($this->options['queue_db_path']);
 }