3v4l.org

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Output for 7.4.0 - 7.4.33, 8.0.1 - 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 ( 0 => 1, 1 => 'a', 2 => 'A', 3 => 2, 4 => 'b', 5 => 'B', 6 => 3, 7 => 'c', 8 => 4, 9 => 'd', 10 => 5, 11 => 'e', 12 => 6, 13 => 'f', 14 => 7, 15 => 8, 16 => 9, 17 => 10, )

preferences:
135.69 ms | 412 KiB | 5 Q