public function param($key)
    {
        return isset($this->params[$key])
            ? $this->params[$key]
            : null;
    }
public function param($key)
    {
        return isset($this->params[$key])
            ? $this->params[$key]
            : null;
    }
public function param ( $ key ) { return isset ( $ this -> params [ $ key ] ) ? $ this -> params [ $ key ] : null ; }
Get uri param

@param string $key
@return string
Get uri param