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Output for 7.1.25, 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(4) { [0]=> string(5) "Susan" [1]=> string(4) "Mark" [3]=> string(7) "Stephan" ["duplicates"]=> array(1) { ["Susan"]=> int(2) } }

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170.13 ms | 412 KiB | 5 Q