/**
 * Returns the path being requested relative to the executed script.
 *
 * The path info always starts with a /.
 *
 * Suppose this request is instantiated from /mysite on localhost:
 *
 *  * http://localhost/mysite              returns an empty string
 *  * http://localhost/mysite/about        returns '/about'
 *  * http://localhost/mysite/enco%20ded   returns '/enco%20ded'
 *  * http://localhost/mysite/about?var=1  returns '/about'
 *
 * @return string The raw path (i.e. not urldecoded)
 */
public function getPathInfo(): string
{
    return $this->pathInfo ??= $this->preparePathInfo();
}