array(4) {
  ["hourly"]=>
  array(2) {
    ["interval"]=>
    int(3600)
    ["display"]=>
    string(11) "Once Hourly"
  }
  ["twicedaily"]=>
  array(2) {
    ["interval"]=>
    int(43200)
    ["display"]=>
    string(11) "Twice Daily"
  }
  ["daily"]=>
  array(2) {
    ["interval"]=>
    int(86400)
    ["display"]=>
    string(10) "Once Daily"
  }
  ["weekly"]=>
  array(2) {
    ["interval"]=>
    int(604800)
    ["display"]=>
    string(11) "Once Weekly"
  }
}