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run code in 300+ PHP versions simultaneously
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Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 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 - 8.4.6
array(34) { [0]=> string(1) "A" [1]=> string(1) "B" [2]=> string(1) "C" [3]=> string(1) "D" [4]=> string(1) "E" [5]=> string(1) "F" [6]=> string(1) "G" [7]=> string(1) "H" [8]=> string(1) "I" [9]=> string(1) "J" [10]=> string(1) "K" [11]=> string(1) "L" [12]=> string(1) "M" [13]=> string(1) "N" [14]=> string(1) "O" [15]=> string(1) "P" [16]=> string(1) "Q" [17]=> string(1) "R" [18]=> string(1) "S" [19]=> string(1) "T" [20]=> string(1) "U" [21]=> string(1) "V" [22]=> string(1) "W" [23]=> string(1) "X" [24]=> string(1) "Y" [25]=> string(1) "Z" [26]=> string(2) "AA" [27]=> string(2) "AB" [28]=> string(2) "AC" [29]=> string(2) "AD" [30]=> string(2) "AE" [31]=> string(2) "AF" [32]=> string(2) "AG" [33]=> string(2) "AH" }

preferences:
162.11 ms | 415 KiB | 5 Q