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 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.19, 8.4.1 - 8.4.5
array ( 0 => 1, 1 => 2, 2 => 3, 3 => 4, ) --- array ( 0 => 4, 1 => 1, 2 => 2, 3 => 3, ) --- array ( 0 => 3, 1 => 4, 2 => 1, 3 => 2, ) --- array ( 0 => 2, 1 => 3, 2 => 4, 3 => 1, ) --- array ( 0 => 1, 1 => 2, 2 => 3, 3 => 4, ) --- array ( 0 => 4, 1 => 1, 2 => 2, 3 => 3, ) --- array ( 0 => 3, 1 => 4, 2 => 1, 3 => 2, ) --- array ( 0 => 2, 1 => 3, 2 => 4, 3 => 1, ) --- array ( 0 => 1, 1 => 2, 2 => 3, 3 => 4, ) --- array ( 0 => 4, 1 => 1, 2 => 2, 3 => 3, ) ---

preferences:
120.78 ms | 413 KiB | 5 Q