array(2) {
  [0]=>
  string(11) "category_id"
  [1]=>
  string(3) "538"
}
array(2) {
  [0]=>
  string(16) "ocfilter_page_id"
  [1]=>
  string(3) "432"
}
array(1) {
  [0]=>
  string(15) "category_id=538"
}