<pre>Array
(
    [lang] => en
    [category] => 
    [subcategory] => 
    [product] => as-2126hs-tn
    [id_product] => 12158
)
</pre>string(12) "as-2126hs-tn"

string(12) "as-2126hs-tn"

string(5) "12158"