var_dump

array(2) {
  [0]=>
  array(6) {
    ["post_title"]=>
    string(4) "Test"
    ["post_content"]=>
    string(4) "Test"
    ["post_category"]=>
    array(1) {
      [0]=>
      string(2) "12"
    }
    ["tags_input"]=>
    array(1) {
      [0]=>
      NULL
    }
    ["post_status"]=>
    string(19) "submission-received"
    ["post_type"]=>
    string(4) "post"
  }
  [1]=>
  int(1924)
}