<pre>Array
(
    [lang] => en
    [category] => 
    [subcategory] => 
    [product] => hdd-al15seb18ep
    [id_product] => 3937
)
</pre>string(15) "hdd-al15seb18ep"

string(15) "hdd-al15seb18ep"

string(4) "3937"