Online PHP editor | output for Mj2p9

Output for 7.1.25 - 7.1.33, 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 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.18, 8.4.1 - 8.4.5: array(2) { ["format1"]=> array(12) { [0]=> string(8) "Jun-2019" [1]=> string(8) "May-2019" [2]=> string(8) "Apr-2019" [3]=> string(8) "Mar-2019" [4]=> string(8) "Feb-2019" [5]=> string(8) "Jan-2019" [6]=> string(8) "Dec-2018" [7]=> string(8) "Nov-2018" [8]=> string(8) "Oct-2018" [9]=> string(8) "Sep-2018" [10]=> string(8) "Aug-2018" [11]=> string(8) "Jul-2018" } ["format2"]=> array(12) { [0]=> string(10) "2019-06-26" [1]=> string(10) "2019-05-26" [2]=> string(10) "2019-04-26" [3]=> string(10) "2019-03-26" [4]=> string(10) "2019-02-26" [5]=> string(10) "2019-01-26" [6]=> string(10) "2018-12-26" [7]=> string(10) "2018-11-26" [8]=> string(10) "2018-10-26" [9]=> string(10) "2018-09-26" [10]=> string(10) "2018-08-26" [11]=> string(10) "2018-07-26" } }