Online PHP editor | output for foKL7

Output for 5.6.38, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.32, 8.2.0 - 8.2.28, 8.3.0 - 8.3.19, 8.4.1 - 8.4.5: array(2) { ["category"]=> string(5) "Music" ["items"]=> array(3) { [0]=> array(3) { ["date"]=> string(10) "2018-11-28" [0]=> array(3) { ["ID"]=> string(1) "1" ["start_date"]=> string(10) "2018-11-20" ["end_date"]=> string(10) "2018-11-28" } [1]=> array(3) { ["ID"]=> string(1) "2" ["start_date"]=> string(10) "2018-11-22" ["end_date"]=> string(10) "2018-11-28" } } [1]=> array(2) { ["date"]=> string(10) "2018-11-30" [0]=> array(3) { ["ID"]=> string(1) "3" ["start_date"]=> string(10) "2018-11-26" ["end_date"]=> string(10) "2018-11-30" } } [2]=> array(3) { ["date"]=> string(10) "2018-11-31" [0]=> array(3) { ["ID"]=> string(1) "4" ["start_date"]=> string(10) "2018-11-27" ["end_date"]=> string(10) "2018-11-31" } [1]=> array(3) { ["ID"]=> string(1) "4" ["start_date"]=> string(10) "2018-11-29" ["end_date"]=> string(10) "2018-11-31" } } } }