<pre>Array
(
    [lang] => en
    [category] => 
    [subcategory] => 
    [product] => g191-h44-rev-100200
    [id_product] => 4765
)
</pre>string(19) "g191-h44-rev-100200"

string(19) "g191-h44-rev-100200"

string(4) "4765"