Par type

        Array
(
    [1] => Array
        (
            [id_attribute] => 16
            [id_attribute_group] => 1
            [name] => Métal
            [group] => Matière
            [reference] => LEDDRINKORO
            [ean13] => 
            [isbn] => 
            [upc] => 
            [mpn] => 
        )

    [2] => Array
        (
            [id_attribute] => 17
            [id_attribute_group] => 2
            [name] => Or
            [group] => Couleur
            [reference] => LEDDRINKORO
            [ean13] => 
            [isbn] => 
            [upc] => 
            [mpn] => 
        )

)
1