public static function addDefaultUserAgentProduct($product, $version = null, $comment = null)
    {
        self::$defaultUserAgentProducts[] = array($product, $version, $comment);
    }
public static function addDefaultUserAgentProduct($product, $version = null, $comment = null)
    {
        self::$defaultUserAgentProducts[] = array($product, $version, $comment);
    }
public static function addDefaultUserAgentProduct ( $ product , $ version = null , $ comment = null ) { self :: $ defaultUserAgentProducts [ ] = array ( $ product , $ version , $ comment ) ; }
Adds a default product for the User-Agent HTTP header sent for each HTTP request.

@param   string  $product   the product's name
@param   string  $version   the product's version
@param   string  $comment   a comment about the product
Adds a default product for the User - Agent HTTP header sent for each HTTP request .