3v4l.org

run code in 300+ PHP versions simultaneously
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Output for 5.6.38 - 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 - 8.3.20, 8.4.1 - 8.4.6
Array ( [expert_skills] => Array ( [1] => 1 [2] => 2 [3] => 3 [4] => 7 ) [inter_skills] => Array ( [1] => 9 [2] => 10 [3] => 7 [4] => 8 [5] => 9 ) [beginner_skills] => Array ( [1] => 6 [2] => 8 ) )

preferences:
140.96 ms | 414 KiB | 5 Q