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<?php $arr = [ 'one' => 1, 'two' => 1, 'three' => 1, ]; unset($arr['two']); $arr['two'] = 2; print_r($arr);
Output for 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [one] => 1 [three] => 1 [two] => 2 )

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267.06 ms | 404 KiB | 330 Q