org\parser\driver\Markdown::_stripLinkDefinitions_callback PHP Метод

    protected function _stripLinkDefinitions_callback($matches)
    {
        $link_id = strtolower($matches[1]);
        $url = '' == $matches[2] ? $matches[3] : $matches[2];
        $this->urls[$link_id] = $url;
        $this->titles[$link_id] =& $matches[4];
        return '';
        # String that will replace the block
    }