3v4l.org

run code in 300+ PHP versions simultaneously
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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 => 0, 1 => 1, 2 => 2, 3 => 3, 4 => 4, 5 => 5, 6 => 6, 7 => 7, 8 => 8, 9 => 9, 10 => 10, 11 => 11, 12 => 12, 13 => 13, 14 => 14, 15 => 15, ) --- array ( 0 => 1, 1 => 3, 2 => 5, 3 => 7, 4 => 9, 5 => 11, 6 => 13, 7 => 15, ) --- array ( 0 => 0, 1 => 3, 2 => 6, 3 => 9, 4 => 12, 5 => 15, ) --- array ( 0 => 3, 1 => 7, 2 => 11, 3 => 15, ) ---

preferences:
120.41 ms | 412 KiB | 5 Q