array(6) {
  ["id"]=>
  string(4) "7121"
  ["qty"]=>
  int(1)
  ["price"]=>
  string(6) "420000"
  ["name"]=>
  string(10) "llantas-16"
  ["principal"]=>
  string(4) "4112"
  ["options"]=>
  array(5) {
    ["imagen"]=>
    string(24) "Sailun Atrezzo Elite.jpg"
    ["codigo"]=>
    string(4) "7121"
    ["categoria"]=>
    string(1) "2"
    ["descripcion"]=>
    string(15) "235/60 R16 100W"
    ["maxStock"]=>
    string(2) "45"
  }
}
<script>addCarrito()</script>