ページを更新することで、ランダム選択をやり直します。
Array ( [0] => 3 [1] => 6 [2] => 8 [3] => 12 [4] => 17 [5] => 25 [6] => 30 [7] => 31 [8] => 36 [9] => 43 [10] => 47 [11] => 52 [12] => 61 [13] => 64 [14] => 75 [15] => 76 [16] => 78 [17] => 80 [18] => 83 [19] => 84 )
Array ( [0] => 1 [1] => 2 [2] => 4 [3] => 5 [4] => 7 [5] => 9 [6] => 10 [7] => 11 [8] => 13 [9] => 14 [10] => 15 [11] => 16 [12] => 18 [13] => 19 [14] => 20 [15] => 21 [16] => 22 [17] => 23 [18] => 24 [19] => 26 [20] => 27 [21] => 28 [22] => 29 [23] => 32 [24] => 33 [25] => 34 [26] => 35 [27] => 37 [28] => 38 [29] => 39 [30] => 40 [31] => 41 [32] => 42 [33] => 44 [34] => 45 [35] => 46 [36] => 48 [37] => 49 [38] => 50 [39] => 51 [40] => 53 [41] => 54 [42] => 55 [43] => 56 [44] => 57 [45] => 58 [46] => 59 [47] => 60 [48] => 62 [49] => 63 [50] => 65 [51] => 66 [52] => 67 [53] => 68 [54] => 69 [55] => 70 [56] => 71 [57] => 72 [58] => 73 [59] => 74 [60] => 77 [61] => 79 [62] => 81 [63] => 82 [64] => 85 [65] => 86 [66] => 87 [67] => 88 [68] => 89 [69] => 90 [70] => 91 [71] => 92 [72] => 93 [73] => 94 [74] => 95 [75] => 96 [76] => 97 [77] => 98 [78] => 99 [79] => 100 )