public function getParam($param, $default = null) 
    {
        if(array_key_exists($param, $this->params)) {
            return $this->params[$param];
        }
        
        return $default;
    }
public function getParam($param, $default = null) 
    {
        if(array_key_exists($param, $this->params)) {
            return $this->params[$param];
        }
        
        return $default;
    }
public function getParam ( $ param , $ default = null ) { if ( array_key_exists ( $ param , $ this -> params ) ) { return $ this -> params [ $ param ] ; } return $ default ; }
Get a specified param

@param string $param
@return mixed
Get a specified param