private static function urlParameter($url)
    {
        $start = strpos($url, '{') + 1;

        $length = strpos($url, '}') - $start;

        return substr($url, $start, $length);
    }
private static function urlParameter($url)
    {
        $start = strpos($url, '{') + 1;

        $length = strpos($url, '}') - $start;

        return substr($url, $start, $length);
    }
private static function urlParameter ( $ url ) { $ start = strpos ( $ url , '{' ) + 1 ; $ length = strpos ( $ url , '}' ) - $ start ; return substr ( $ url , $ start , $ length ) ; }
Url parameter.

@param string $url

@return string
Url parameter .