3v4l.org

run code in 300+ PHP versions simultaneously
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Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 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 - 8.1.32, 8.2.0 - 8.2.28, 8.3.0 - 8.3.19, 8.4.1 - 8.4.5
Array ( [0] => A1 [1] => A2 [2] => A12 [3] => A3 [4] => A13 [5] => A23 [6] => A123 [7] => B1 [8] => B2 [9] => B12 [10] => B3 [11] => B13 [12] => B23 [13] => B123 )

preferences:
231.21 ms | 414 KiB | 5 Q