3v4l.org

run code in 300+ PHP versions simultaneously
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Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 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 - 7.2.34, 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 - 8.4.5
array ( 0 => 6, 1 => 8, 2 => 9, 3 => 9, 4 => 11, 5 => 15, 6 => 19, 7 => 20, 8 => 24, 9 => 24, 10 => 27, 11 => 32, 12 => 41, 13 => 43, 14 => 43, 15 => 44, 16 => 48, 17 => 51, 18 => 54, 19 => 60, 20 => 63, 21 => 64, 22 => 67, 23 => 73, 24 => 77, 25 => 84, 26 => 85, 27 => 86, 28 => 88, 29 => 93, )43.5

preferences:
196.5 ms | 415 KiB | 5 Q